Starrett High-Accuracy Rulers
Inch
Inch/Metric
Metric
Also known as machinists’ rules, these rulers ensure reliable, repeatable measurements. They meet Fed. Spec. GGG-R-791H, which establishes uniform standards for ruler accuracy, graduations, and size. All have a corrosion-resistant satin-chrome finish that reduces glare and wear-resistant etched markings. Inch and inch/metric rulers are labeled with numeric increments that are less than 1" for quick reading.
Flexible rulers are for measuring slightly curved surfaces.
| Lg. | Front Graduation Marks (Numeric Increments) | Back Graduation Marks (Numeric Increments) | Accuracy | Wd. | Thick. | Flexibility | Color | Graduation Mark Style | Manufacturer Model No. | Appearance | Each | |
Inch—Left to Right Reading Direction | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome Plated Steel | ||||||||||||
| 3" | 64ths (8/64"), 32nds (4/32") | 8ths (1"), 16ths (1") | -0.0035" to +0.004" | 9/16" | 3/64" | Rigid | Silver | Etched | C604R-3 | Satin | 0000000 | 000000 |
| 6" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 100ths (1/10") | -0.0035" to +0.004" | 1/2" | 1/64" | Flexible | Silver | Etched | C305R-6 | Satin | 000000 | 00000 |
| 6" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 50ths (1/10") | -0.0035" to +0.004" | 1/2" | 1/64" | Flexible | Silver | Etched | C303R-6 | Satin | 0000000 | 00000 |
| 6" | 32nds (4/32"), 64ths (8/64") | 50ths (1/10"), 100ths (1/10") | -0.0035" to +0.004" | 1/2" | 1/64" | Flexible | Silver | Etched | C316R-6 | Satin | 0000000 | 00000 |
| 6" | 32nds (4/32"), 64ths (8/64") | 50ths (1/10"), 100ths (1/10") | -0.0035" to +0.004" | 3/4" | 3/64" | Rigid | Silver | Etched | C616R-6 | Satin | 0000000 | 00000 |
| 6" | 50ths (1/10"), 50ths (1/10") | 10ths (1/10"), 10ths (1/10") | -0.0035" to +0.004" | 3/4" | 3/64" | Rigid | Silver | Etched | C606R-6 | Satin | 0000000 | 00000 |
| 6" | 64ths (8/64"), 32nds (4/32") | 8ths (1"), 16ths (1"), 32nds | -0.0035" to +0.004" | 3/4" | 3/64" | Rigid | Silver | Etched | C604RE-6 | Satin | 0000000 | 00000 |
| 6" | 64ths (8/64"), 32nds (4/32") | 8ths (1"), 16ths (1") | -0.0035" to +0.004" | 3/4" | 3/64" | Rigid | Silver | Etched | C604R-6 | Satin | 0000000 | 00000 |
| 6" | 64ths (8/64") | 16ths (1"), 32nds (4/32") | -0.0035" to +0.004" | 1/2" | 1/64" | Flexible | Silver | Etched | C309R-6 | Satin | 0000000 | 00000 |
| 12" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 100ths (1/10") | -0.0035" to +0.005" | 1/2" | 1/64" | Flexible | Silver | Etched | C305R-12 | Satin | 000000 | 00000 |
| 12" | 32nds (4/32"), 64ths (8/64") | 50ths (1/10"), 100ths (1/10") | -0.0035" to +0.005" | 1/2" | 1/64" | Flexible | Silver | Etched | C316R-12 | Satin | 0000000 | 00000 |
| 12" | 32nds (4/32"), 64ths (8/64") | 50ths (1/10"), 100ths (1/10") | -0.0035" to +0.005" | 1" | 3/64" | Rigid | Silver | Etched | C616R-12 | Satin | 0000000 | 00000 |
| 12" | 64ths (8/64"), 32nds (4/32") | 8ths (1"), 16ths (1"), 32nds | -0.0035" to +0.005" | 1" | 3/64" | Rigid | Silver | Etched | C604RE-12 | Satin | 0000000 | 00000 |
| 12" | 64ths (8/64"), 32nds (4/32") | 8ths (1"), 16ths (1") | -0.0035" to +0.005" | 1" | 3/64" | Rigid | Silver | Etched | C604R-12 | Satin | 0000000 | 00000 |
| 18" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 100ths (1/10") | -0.0035" to +0.006" | 3/4" | 1/64" | Flexible | Silver | Etched | C305R-18 | Satin | 000000 | 000000 |
| 18" | 64ths (8/64"), 32nds (4/32") | 8ths (1"), 16ths (1") | -0.0035" to +0.006" | 1 1/8" | 3/64" | Rigid | Silver | Etched | C604R-18 | Satin | 0000000 | 000000 |
| 24" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 100ths (1/10") | -0.0035" to +0.007" | 3/4" | 1/64" | Flexible | Silver | Etched | C305R-24 | Satin | 000000 | 000000 |
| 24" | 64ths (8/64"), 32nds (4/32") | 8ths (1"), 16ths (1") | -0.0035" to +0.007" | 1 1/4" | 3/64" | Rigid | Silver | Etched | C604R-24 | Satin | 0000000 | 000000 |
| 36" | 64ths (8/64"), 32nds (4/32") | 8ths (1"), 16ths (1") | -0.0035" to +0.007" | 1 1/4" | 3/64" | Rigid | Silver | Etched | C604R-36 | Satin | 0000000 | 000000 |
| 48" | 64ths (8/64"), 32nds (4/32") | 8ths (1"), 16ths (1") | -0.005" to +0.010" | 1 1/4" | 3/64" | Rigid | Silver | Etched | C604R-48 | Satin | 0000000 | 000000 |
| 72" | 32nds (4/32"), 64ths (8/64") | 50ths (1/10"), 100ths (1/10") | -0.007" to +0.012" | 1 1/2" | 3/32" | Rigid | Silver | Etched | C416R-72 | Satin | 0000000 | 00000000 |
| 72" | 64ths (8/64"), 32nds (4/32") | 8ths (1"), 16ths (1") | -0.007" to +0.012" | 1 1/2" | 3/32" | Rigid | Silver | Etched | C404R-72 | Satin | 0000000 | 000000 |
Inch/Metric—Left to Right Reading Direction | ||||||||||||
Chrome Plated Steel | ||||||||||||
| 5 3/4"/150 mm | 1/2 mm (10 mm), 32nds (4/32") | Millimeters (10 mm), 64ths (8/64") | -0.0035" to +0.004"/-0.09 mm to +0.1 mm | 3/4" | 3/64" | Rigid | Silver | Etched | C636ME-150 | Satin | 0000000 | 00000 |
| 5 3/4"/150 mm | 10ths (1/10"), 50ths (1/10") | Millimeters (10 mm), 1/2 mm (10 mm) | -0.0035" to +0.004"/-0.09 mm to +0.1 mm | 1/2" | 1/64" | Flexible | Silver | Etched | C334-150 | Satin | 0000000 | 00000 |
| 5 3/4"/150 mm | 32nds (4/32"), 64ths (8/64") | 1/2 mm (10 mm), Millimeters (10 mm) | -0.0035" to +0.004"/-0.09 mm to +0.1 mm | 1/2" | 1/64" | Flexible | Silver | Etched | C331-150 | Satin | 0000000 | 00000 |
| 11 3/4"/300 mm | 1/2 mm (10 mm), 32nds (4/32") | Millimeters (10 mm), 64ths (8/64") | -0.0035" to +0.005"/-0.09 mm to +0.15 mm | 1" | 3/64" | Rigid | Silver | Etched | C636-300 | Satin | 0000000 | 00000 |
| 11 3/4"/300 mm | 32nds (4/32"), 64ths (8/64") | 1/2 mm (10 mm), Millimeters (10 mm) | -0.0035" to +0.005"/-0.09 mm to +0.15 mm | 1/2" | 1/64" | Flexible | Silver | Etched | C331-300 | Satin | 0000000 | 00000 |
| 19 1/2"/500 mm | 1/2 mm (10 mm), 32nds (4/32") | Millimeters (10 mm), 64ths (8/64") | -0.0035" to +0.007"/-0.09 mm to +0.2 mm | 1 1/8" | 3/64" | Rigid | Silver | Etched | C636-500 | Satin | 0000000 | 000000 |
| 39 1/4"/1,000 mm | 1/2 mm (10 mm), 32nds (4/32") | Millimeters (10 mm), 64ths (8/64") | -0.005" to +0.010"/-0.11 mm to +0.25 mm | 1 1/4" | 3/64" | Rigid | Silver | Etched | C636-1000 | Satin | 0000000 | 000000 |
Metric—Left to Right Reading Direction | ||||||||||||
Chrome Plated Steel | ||||||||||||
| 150 mm | 1/2 mm (10 mm) | 1/2 mm (10 mm), Millimeters (10 mm) | -0.09 mm to +0.1 mm | 1/2" | 1/64" | Flexible | Silver | Etched | C330-150 | Satin | 0000000 | 00000 |
| 150 mm | Millimeters (10 mm), 1/2 mm (10 mm), Millimeters | Millimeters (10 mm), 1/2 mm (10 mm) | -0.09 mm to +0.1 mm | 3/4" | 3/64" | Rigid | Silver | Etched | C635E-150 | Satin | 0000000 | 00000 |
| 300 mm | Millimeters (10 mm), 1/2 mm (10 mm) | Millimeters (10 mm), 1/2 mm (10 mm) | -0.09 mm to +0.15 mm | 1" | 3/64" | Rigid | Silver | Etched | C635-300 | Satin | 0000000 | 00000 |
Starrett Certified High-Accuracy Rulers
Inch
Inch/Metric
Ensure reliable, repeatable measurements with these rulers. They include a calibration certificate traceable to NIST stating they have passed a test for accuracy. All meet Fed. Spec. GGG-R-791H, which establishes uniform standards for ruler accuracy, graduations, and size. They're also known as machinists' rules. They have a corrosion-resistant satin-chrome finish that reduces glare and wear-resistant etched markings. These rulers are labeled with numeric increments that are less than 1" for quick reading.
| Lg. | Front Graduation Marks (Numeric Increments) | Back Graduation Marks (Numeric Increments) | Accuracy | Wd. | Thick. | Flexibility | Color | Graduation Mark Style | Manufacturer Model No. | Appearance | Each | |
Inch—Left to Right Reading Direction | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome Plated Steel | ||||||||||||
| 6" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 100ths (1/10") | -0.0035" to +0.004" | 1/2" | 1/64" | Rigid | Silver | Etched | C305R-6 | Satin | 0000000 | 000000 |
| 6" | 50ths (1/10"), 50ths (1/10") | 10ths (1/10"), 10ths (1/10") | -0.0035" to +0.004" | 3/4" | 3/64" | Rigid | Silver | Etched | C606R-6 | Satin | 0000000 | 00000 |
| 6" | 64ths (8/64"), 32nds (4/32") | 8ths (1"), 16ths (1") | -0.0035" to +0.004" | 3/4" | 3/64" | Rigid | Silver | Etched | C604R-6 | Satin | 0000000 | 00000 |
| 12" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 100ths (1/10") | -0.0035" to +0.005" | 1/2" | 1/64" | Rigid | Silver | Etched | C305R-12 | Satin | 0000000 | 000000 |
| 12" | 64ths (8/64"), 32nds (4/32") | 8ths (1"), 16ths (1") | -0.0035" to +0.005" | 1" | 3/64" | Rigid | Silver | Etched | C604R-12 | Satin | 0000000 | 000000 |
| 24" | 64ths (8/64"), 32nds (4/32") | 8ths (1"), 16ths (1") | -0.0035" to +0.007" | 1 1/4" | 3/64" | Rigid | Silver | Etched | C604R-24 | Satin | 0000000 | 000000 |
| 36" | 64ths (8/64"), 32nds (4/32") | 8ths (1"), 16ths (1") | -0.0035" to +0.007" | 1 1/4" | 3/64" | Rigid | Silver | Etched | C604R-36 | Satin | 0000000 | 000000 |
| 72" | 64ths (8/64"), 32nds (4/32") | 8ths (1"), 16ths (1") | -0.007" to +0.012" | 1 1/2" | 3/32" | Rigid | Silver | Etched | C404R-72 | Satin | 0000000 | 000000 |
Inch/Metric—Left to Right Reading Direction | ||||||||||||
Chrome Plated Steel | ||||||||||||
| 5 3/4"/150 mm | 1/2 mm (10 mm), 32nds (4/32") | Millimeters (10 mm), 64ths (8/64") | -0.0035" to +0.004"/-0.09 mm to +0.1 mm | 3/4" | 3/64" | Rigid | Silver | Etched | C636ME-150 | Satin | 0000000 | 00000 |
| 5 3/4"/150 mm | 10ths (1/10"), 50ths (1/10") | Millimeters (10 mm), 1/2 mm (10 mm) | -0.0035" to +0.004"/-0.09 mm to +0.1 mm | 1/2" | 1/64" | Rigid | Silver | Etched | C334-150 | Satin | 0000000 | 00000 |
| 11 3/4"/300 mm | 1/2 mm (10 mm), 32nds (4/32") | Millimeters (10 mm), 64ths (8/64") | -0.0035" to +0.005"/-0.09 mm to +0.15 mm | 1" | 3/64" | Rigid | Silver | Etched | C636-300 | Satin | 0000000 | 000000 |
| 19 1/2"/500 mm | 1/2 mm (10 mm), 32nds (4/32") | Millimeters (10 mm), 64ths (8/64") | -0.0035" to +0.007"/-0.09 mm to +0.2 mm | 1 1/8" | 3/64" | Rigid | Silver | Etched | C636-500 | Satin | 0000000 | 000000 |
| 39 1/4"/1,000 mm | 1/2 mm (10 mm), 32nds (4/32") | Millimeters (10 mm), 64ths (8/64") | -0.005" to +0.01"/-0.11 mm to +0.25 mm | 1 1/4" | 3/64" | Rigid | Silver | Etched | C636-1000 | Satin | 0000000 | 000000 |
High-Accuracy Rulers
Inch
Inch/Metric
Metric
An economical alternative to Starrett High-Accuracy Rulers, these provide reliable, repeatable measurements. All meet Fed. Spec. GGG-R-791H, which establishes uniform standards for ruler accuracy, graduations, and size. They're also known as machinists' rules. They have a corrosion-resistant satin chrome-plated finish that reduces glare and wear-resistant etched markings. Inch and inch/metric rulers are labeled with numeric increments that are less than 1" for quick reading.
Flexible rulers are for measuring slightly curved surfaces.
| Lg. | Front Graduation Marks (Numeric Increments) | Back Graduation Marks (Numeric Increments) | Accuracy | Wd. | Thick. | Flexibility | Color | Graduation Mark Style | Each | |
Inch—Left to Right Reading Direction | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Satin Chrome-Plated Steel | ||||||||||
| 6" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 100ths (1/10") | -0.0035" to +0.004" | 1/2" | 1/64" | Flexible | Silver | Etched | 0000000 | 000000 |
| 6" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 100ths (1/10") | -0.0035" to +0.004" | 3/4" | 3/64" | Rigid | Silver | Etched | 0000000 | 00000 |
| 6" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 50ths (1/10") | -0.0035" to +0.004" | 1/2" | 1/64" | Flexible | Silver | Etched | 0000000 | 00000 |
| 6" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 50ths (1/10") | -0.0035" to +0.004" | 3/4" | 3/64" | Rigid | Silver | Etched | 0000000 | 00000 |
| 6" | 32nds (4/32"), 64ths (8/64") | 50ths (1/10"), 100ths (1/10") | -0.0035" to +0.004" | 1/2" | 1/64" | Flexible | Silver | Etched | 0000000 | 00000 |
| 6" | 32nds (4/32"), 64ths (8/64") | 50ths (1/10"), 100ths (1/10") | -0.0035" to +0.004" | 3/4" | 3/64" | Rigid | Silver | Etched | 0000000 | 00000 |
| 6" | 64ths (8/64"), 32nds (4/32") | 8ths (1"), 16ths (1") | -0.0035" to +0.004" | 1/2" | 1/64" | Flexible | Silver | Etched | 0000000 | 00000 |
| 6" | 64ths (8/64"), 32nds (4/32") | 8ths (1"), 16ths (1") | -0.0035" to +0.004" | 3/4" | 3/64" | Rigid | Silver | Etched | 0000000 | 00000 |
| 12" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 100ths (1/10") | -0.0035" to +0.005" | 1/2" | 1/64" | Flexible | Silver | Etched | 0000000 | 00000 |
| 12" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 100ths (1/10") | -0.0035" to +0.005" | 1" | 3/64" | Rigid | Silver | Etched | 0000000 | 00000 |
| 12" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 50ths (1/10") | -0.0035" to +0.005" | 1/2" | 1/64" | Flexible | Silver | Etched | 0000000 | 00000 |
| 12" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 50ths (1/10") | -0.0035" to +0.005" | 1" | 3/64" | Rigid | Silver | Etched | 0000000 | 00000 |
| 12" | 32nds (4/32"), 64ths (8/64") | 50ths (1/10"), 100ths (1/10") | -0.0035" to +0.005" | 1/2" | 1/64" | Flexible | Silver | Etched | 0000000 | 00000 |
| 12" | 32nds (4/32"), 64ths (8/64") | 50ths (1/10"), 100ths (1/10") | -0.0035" to +0.005" | 1" | 3/64" | Rigid | Silver | Etched | 0000000 | 00000 |
| 12" | 64ths (8/64"), 32nds (4/32") | 8ths (1"), 16ths (1") | -0.0035" to +0.005" | 1/2" | 1/64" | Flexible | Silver | Etched | 0000000 | 00000 |
| 12" | 64ths (8/64"), 32nds (4/32") | 8ths (1"), 16ths (1") | -0.0035" to +0.005" | 1" | 3/64" | Rigid | Silver | Etched | 0000000 | 00000 |
| 18" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 100ths (1/10") | -0.0035" to +0.006" | 3/4" | 1/64" | Flexible | Silver | Etched | 0000000 | 00000 |
| 18" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 100ths (1/10") | -0.0035" to +0.006" | 1 1/8" | 3/64" | Rigid | Silver | Etched | 0000000 | 00000 |
| 18" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 50ths (1/10") | -0.0035" to +0.006" | 3/4" | 1/64" | Flexible | Silver | Etched | 0000000 | 00000 |
| 18" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 50ths (1/10") | -0.0035" to +0.006" | 1 1/8" | 3/64" | Rigid | Silver | Etched | 0000000 | 00000 |
| 18" | 32nds (4/32"), 64ths (8/64") | 50ths (1/10"), 100ths (1/10") | -0.0035" to +0.006" | 3/4" | 1/64" | Flexible | Silver | Etched | 0000000 | 00000 |
| 18" | 32nds (4/32"), 64ths (8/64") | 50ths (1/10"), 100ths (1/10") | -0.0035" to +0.006" | 1 1/8" | 3/64" | Rigid | Silver | Etched | 0000000 | 00000 |
| 18" | 64ths (8/64"), 32nds (4/32") | 8ths (1"), 16ths (1") | -0.0035" to +0.006" | 3/4" | 1/64" | Flexible | Silver | Etched | 0000000 | 00000 |
| 18" | 64ths (8/64"), 32nds (4/32") | 8ths (1"), 16ths (1") | -0.0035" to +0.006" | 1 1/8" | 3/64" | Rigid | Silver | Etched | 0000000 | 00000 |
| 24" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 100ths (1/10") | -0.0035" to +0.007" | 3/4" | 1/64" | Flexible | Silver | Etched | 0000000 | 00000 |
| 24" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 100ths (1/10") | -0.0035" to +0.007" | 1 1/8" | 3/64" | Rigid | Silver | Etched | 0000000 | 00000 |
| 24" | 32nds (4/32"), 64ths (8/64") | 50ths (1/10"), 100ths (1/10") | -0.0035" to +0.007" | 3/4" | 1/64" | Flexible | Silver | Etched | 0000000 | 00000 |
| 24" | 32nds (4/32"), 64ths (8/64") | 50ths (1/10"), 100ths (1/10") | -0.0035" to +0.007" | 1 1/8" | 3/64" | Rigid | Silver | Etched | 0000000 | 00000 |
| 24" | 64ths (8/64"), 32nds (4/32") | 8ths (1"), 16ths (1") | -0.0035" to +0.007" | 3/4" | 1/64" | Flexible | Silver | Etched | 0000000 | 00000 |
| 24" | 64ths (8/64"), 32nds (4/32") | 8ths (1"), 16ths (1") | -0.0035" to +0.007" | 1 1/8" | 3/64" | Rigid | Silver | Etched | 0000000 | 00000 |
| 36" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 100ths (1/10") | -0.0035" to +0.007" | 3/4" | 1/64" | Flexible | Silver | Etched | 0000000 | 000000 |
| 36" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 100ths (1/10") | -0.0035" to +0.007" | 1 1/4" | 3/64" | Rigid | Silver | Etched | 0000000 | 000000 |
| 36" | 64ths (8/64"), 32nds (4/32") | 8ths (1"), 16ths (1") | -0.0035" to +0.007" | 1 1/4" | 3/64" | Rigid | Silver | Etched | 0000000 | 000000 |
| 48" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 100ths (1/10") | -0.0035" to +0.008" | 3/4" | 1/64" | Flexible | Silver | Etched | 0000000 | 000000 |
| 48" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 100ths (1/10") | -0.0035" to +0.008" | 1 1/4" | 3/64" | Rigid | Silver | Etched | 0000000 | 000000 |
| 48" | 32nds (4/32"), 64ths (8/64") | 50ths (1/10"), 100ths (1/10") | -0.0035" to +0.008" | 1 1/4" | 3/64" | Rigid | Silver | Etched | 0000000 | 000000 |
| 48" | 64ths (8/64"), 32nds (4/32") | 8ths (1"), 16ths (1") | -0.0035" to +0.008" | 1 1/4" | 3/64" | Rigid | Silver | Etched | 0000000 | 000000 |
Inch/Metric—Left to Right Reading Direction | ||||||||||
Satin Chrome-Plated Steel | ||||||||||
| 6"/150 mm | 32nds (4/32"), 64ths (8/64") | 1/2 mm (10 mm), Millimeters (10 mm) | -0.0035" to +0.004"/-0.09 mm to +0.1 mm | 1/2" | 1/64" | Flexible | Silver | Etched | 000000 | 00000 |
| 6"/150 mm | 32nds (4/32"), 64ths (8/64") | 1/2 mm (10 mm), Millimeters (10 mm) | -0.0035" to +0.004"/-0.09 mm to +0.1 mm | 3/4" | 3/64" | Rigid | Silver | Etched | 000000 | 00000 |
| 12"/300 mm | 32nds (4/32"), 64ths (8/64") | 1/2 mm (10 mm), Millimeters (10 mm) | -0.0035" to +0.005"/-0.09 mm to +0.13 mm | 1/2" | 1/64" | Flexible | Silver | Etched | 000000 | 00000 |
| 12"/300 mm | 32nds (4/32"), 64ths (8/64") | 1/2 mm (10 mm), Millimeters (10 mm) | -0.0035" to +0.005"/-0.09 mm to +0.13 mm | 1" | 3/64" | Rigid | Silver | Etched | 000000 | 00000 |
| 18"/450 mm | 32nds (4/32"), 64ths (8/64") | 1/2 mm (10 mm), Millimeters (10 mm) | -0.0035" to +0.006"/-0.09 mm to +0.15 mm | 3/4" | 1/64" | Flexible | Silver | Etched | 0000000 | 00000 |
| 18"/450 mm | 32nds (4/32"), 64ths (8/64") | 1/2 mm (10 mm), Millimeters (10 mm) | -0.0035" to +0.006"/-0.09 mm to +0.15 mm | 1 1/8" | 3/64" | Rigid | Silver | Etched | 0000000 | 00000 |
| 24"/600 mm | 32nds (4/32"), 64ths (8/64") | 1/2 mm (10 mm), Millimeters (10 mm) | -0.0035" to +0.007"/-0.09 mm to +0.18 mm | 3/4" | 1/64" | Flexible | Silver | Etched | 0000000 | 00000 |
| 24"/600 mm | 32nds (4/32"), 64ths (8/64") | 1/2 mm (10 mm), Millimeters (10 mm) | -0.0035" to +0.007"/-0.09 mm to +0.18 mm | 1 1/8" | 3/64" | Rigid | Silver | Etched | 0000000 | 00000 |
Metric—Left to Right Reading Direction | ||||||||||
Satin Chrome-Plated Steel | ||||||||||
| 150 mm | Millimeters (10 mm), 1/2 mm (10 mm) | Millimeters (10 mm), 1/2 mm (10 mm) | -0.09 mm to +0.1 mm | 1/2" | 1/64" | Flexible | Silver | Etched | 000000 | 00000 |
| 150 mm | Millimeters (10 mm), 1/2 mm (10 mm) | Millimeters (10 mm), 1/2 mm (10 mm) | -0.09 mm to +0.1 mm | 3/4" | 3/64" | Rigid | Silver | Etched | 000000 | 00000 |
| 300 mm | Millimeters (10 mm), 1/2 mm (10 mm) | Millimeters (10 mm), 1/2 mm (10 mm) | -0.09 mm to +0.13 mm | 1/2" | 1/64" | Flexible | Silver | Etched | 000000 | 00000 |
| 300 mm | Millimeters (10 mm), 1/2 mm (10 mm) | Millimeters (10 mm), 1/2 mm (10 mm) | -0.09 mm to +0.13 mm | 1" | 3/64" | Rigid | Silver | Etched | 000000 | 00000 |
| 450 mm | Millimeters (10 mm), 1/2 mm (10 mm) | Millimeters (10 mm), 1/2 mm (10 mm) | -0.09 mm to +0.15 mm | 3/4" | 1/64" | Flexible | Silver | Etched | 0000000 | 00000 |
| 450 mm | Millimeters (10 mm), 1/2 mm (10 mm) | Millimeters (10 mm), 1/2 mm (10 mm) | -0.09 mm to +0.15 mm | 1 1/8" | 3/64" | Rigid | Silver | Etched | 0000000 | 00000 |
| 600 mm | Millimeters (10 mm), 1/2 mm (10 mm) | Millimeters (10 mm), 1/2 mm (10 mm) | -0.09 mm to +0.18 mm | 3/4" | 1/64" | Flexible | Silver | Etched | 0000000 | 00000 |
| 600 mm | Millimeters (10 mm), 1/2 mm (10 mm) | Millimeters (10 mm), 1/2 mm (10 mm) | -0.09 mm to +0.18 mm | 1 1/8" | 3/64" | Rigid | Silver | Etched | 0000000 | 00000 |
Certified High-Accuracy Rulers
Inch
Inch/Metric
These rulers include a certificate of calibration traceable to NIST with test measurements that confirm accuracy. An economical alternative to Starrett Certified High-Accuracy Rulers, they provide reliable, repeatable measurements. All meet Fed. Spec. GGG-R-791H, which establishes uniform standards for ruler accuracy, graduations, and size. They’re also known as machinists’ rules. They have a corrosion-resistant satin-chrome finish that reduces glare and wear-resistant etched markings. These rulers are labeled with numeric increments that are less than 1" for quick reading.
Flexible rulers are for measuring slightly curved surfaces.
| Lg. | Front Graduation Marks (Numeric Increments) | Back Graduation Marks (Numeric Increments) | Accuracy | Wd. | Thick. | Flexibility | Color | Graduation Mark Style | Each | |
Inch—Left to Right Reading Direction | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Satin Chrome-Plated Steel | ||||||||||
| 6" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 100ths (1/10") | -0.0035" to +0.004" | 1/2" | 1/64" | Flexible | Silver | Etched | 0000000 | 000000 |
| 6" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 100ths (1/10") | -0.0035" to +0.004" | 3/4" | 3/64" | Rigid | Silver | Etched | 0000000 | 00000 |
| 6" | 32nds (4/32"), 64ths (8/64") | 8ths (1"), 16ths (1") | -0.0035" to +0.004" | 3/4" | 3/64" | Rigid | Silver | Etched | 0000000 | 00000 |
| 12" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 100ths (1/10") | -0.0035" to +0.005" | 1/2" | 1/64" | Flexible | Silver | Etched | 0000000 | 00000 |
| 12" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 100ths (1/10") | -0.0035" to +0.005" | 1" | 3/64" | Rigid | Silver | Etched | 0000000 | 00000 |
| 12" | 32nds (4/32"), 64ths (8/64") | 8ths (1"), 16ths (1") | -0.0035" to +0.005" | 1" | 3/64" | Rigid | Silver | Etched | 0000000 | 00000 |
| 24" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 100ths (1/10") | -0.0035" to +0.007" | 3/4" | 1/64" | Flexible | Silver | Etched | 0000000 | 000000 |
| 24" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 100ths (1/10") | -0.0035" to +0.007" | 1 1/8" | 3/64" | Rigid | Silver | Etched | 0000000 | 000000 |
| 24" | 32nds (4/32"), 64ths (8/64") | 8ths (1"), 16ths (1") | -0.0035" to +0.007" | 1 1/8" | 3/64" | Rigid | Silver | Etched | 0000000 | 000000 |
| 36" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 100ths (1/10") | -0.0035" to +0.007" | 3/4" | 1/64" | Flexible | Silver | Etched | 0000000 | 000000 |
| 36" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 100ths (1/10") | -0.0035" to +0.007" | 1 1/8" | 3/64" | Rigid | Silver | Etched | 0000000 | 000000 |
| 36" | 32nds (4/32"), 64ths (8/64") | 8ths (1"), 16ths (1") | -0.0035" to +0.007" | 1 1/8" | 3/64" | Rigid | Silver | Etched | 0000000 | 000000 |
| 48" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 100ths (1/10") | -0.0035" to +0.008" | 1 1/4" | 3/64" | Rigid | Silver | Etched | 0000000 | 000000 |
| 48" | 32nds (4/32"), 64ths (8/64") | 8ths (1"), 16ths (1") | -0.0035" to +0.008" | 1 1/4" | 3/64" | Rigid | Silver | Etched | 0000000 | 000000 |
Inch/Metric—Left to Right Reading Direction | ||||||||||
Satin Chrome-Plated Steel | ||||||||||
| 6"/150 mm | 32nds (4/32"), 64ths (8/64") | 1/2 mm (10 mm), Millimeters (10 mm) | -0.0035" to +0.004"/-0.09 mm to +0.1 mm | 3/4" | 3/64" | Rigid | Silver | Etched | 0000000 | 00000 |
| 12"/300 mm | 32nds (4/32"), 64ths (8/64") | 1/2 mm (10 mm), Millimeters (10 mm) | -0.0035" to +0.005"/-0.09 mm to +0.13 mm | 1" | 3/64" | Rigid | Silver | Etched | 0000000 | 000000 |
| 24"/600 mm | 32nds (4/32"), 64ths (8/64") | 1/2 mm (10 mm), Millimeters (10 mm) | -0.0035" to +0.007"/-0.09 mm to +0.18 mm | 1 1/8" | 3/64" | Rigid | Silver | Etched | 0000000 | 000000 |
| 36"/900 mm | 32nds (4/32"), 64ths (8/64") | 1/2 mm (10 mm), Millimeters (10 mm) | -0.0035" to +0.007"/-0.09 mm to +0.18 mm | 1 1/8" | 3/64" | Rigid | Silver | Etched | 0000000 | 000000 |
| 48"/1,200 mm | 32nds (4/32"), 64ths (8/64") | 1/2 mm (10 mm), Millimeters (10 mm) | -0.0035" to +0.008"/-0.09 mm to +0.2 mm | 1 1/4" | 3/64" | Rigid | Silver | Etched | 0000000 | 000000 |
Starrett High-Accuracy Rulers with Hook
A reversible, removable hook grabs the edge of an object for easy alignment. Also known as machinists’ rules, these rulers ensure reliable, repeatable measurements. They meet Fed. Spec. GGG-R-791H, which establishes uniform standards for ruler accuracy, graduations, and size. All have a corrosion-resistant satin-chrome finish that reduces glare and wear-resistant etched markings. These rulers are labeled with numeric increments that are less than 1" for quick reading.
| Lg. | Front Graduation Marks (Numeric Increments) | Back Graduation Marks (Numeric Increments) | Accuracy | Wd. | Thick. | Flexibility | Color | Graduation Mark Style | Manufacturer Model No. | Appearance | Each | |
Inch—Left to Right Reading Direction | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome Plated Steel | ||||||||||||
| 6" | 64ths (8/64"), 32nds (4/32") | 8ths (1"), 16ths (1") | -0.0035" to +0.004" | 3/4" | 3/64" | Rigid | Silver | Etched | CH604R-6 | Satin | 0000000 | 000000 |
| 12" | 64ths (8/64"), 32nds (4/32") | 8ths (1"), 16ths (1") | -0.0035" to +0.005" | 1" | 3/64" | Rigid | Silver | Etched | CH604R-12 | Satin | 0000000 | 00000 |
| 18" | 64ths (8/64"), 32nds (4/32") | 8ths (1"), 16ths (1") | -0.0035" to +0.006" | 1 1/8" | 3/64" | Rigid | Silver | Etched | CH604R-18 | Satin | 0000000 | 000000 |
| 24" | 64ths (8/64"), 32nds (4/32") | 8ths (1"), 16ths (1") | -0.0035" to +0.007" | 1 1/4" | 3/64" | Rigid | Silver | Etched | CH604R-24 | Satin | 0000000 | 000000 |
| 36" | 64ths (8/64"), 32nds (4/32") | 8ths (1"), 16ths (1") | -0.0035" to +0.007" | 1 1/4" | 3/64" | Rigid | Silver | Etched | CH604R-36 | Satin | 0000000 | 000000 |
| 48" | 64ths (8/64"), 32nds (4/32") | 8ths (1"), 16ths (1") | -0.005" to +0.010" | 1 1/2" | 3/32" | Rigid | Silver | Etched | CH404R-48 | Satin | 0000000 | 000000 |
Scratch-Resistant High-Accuracy Rulers
Inch
Inch/Metric
Protect your ruler from scratches and wear with a TiN (titanium nitride) coating. Also known as machinists’ rules, these rulers ensure reliable, repeatable measurements. They meet Fed. Spec. GGG-R-791H, which establishes uniform standards for ruler accuracy, graduations, and size. All have wear-resistant etched markings and are labeled with numeric increments that are less than 1" for quick reading.
Flexible rulers are for measuring slightly curved surfaces.
| Lg. | Front Graduation Marks (Numeric Increments) | Back Graduation Marks (Numeric Increments) | Accuracy | Wd. | Thick. | Flexibility | Color | Graduation Mark Style | Each | |
Inch—Left to Right Reading Direction | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Titanium Nitride (TiN) Coated Steel | ||||||||||
| 6" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 100ths (1/10") | -0.0035" to +0.004" | 1/2" | 1/64" | Flexible | Gold | Etched | 00000000 | 000000 |
| 6" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 100ths (1/10") | -0.0035" to +0.004" | 3/4" | 3/64" | Rigid | Gold | Etched | 00000000 | 00000 |
| 6" | 32nds (4/32"), 64ths (8/64") | 8ths (1"), 16ths (1") | -0.0035" to +0.004" | 1/2" | 1/64" | Flexible | Gold | Etched | 00000000 | 00000 |
| 6" | 32nds (4/32"), 64ths (8/64") | 8ths (1"), 16ths (1") | -0.0035" to +0.004" | 3/4" | 3/64" | Rigid | Gold | Etched | 00000000 | 00000 |
| 12" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 100ths (1/10") | -0.0035" to +0.005" | 1/2" | 1/64" | Flexible | Gold | Etched | 00000000 | 00000 |
| 12" | 32nds (4/32"), 64ths (8/64") | 10ths (1/10"), 100ths (1/10") | -0.0035" to +0.005" | 1" | 3/64" | Rigid | Gold | Etched | 00000000 | 00000 |
| 12" | 32nds (4/32"), 64ths (8/64") | 8ths (1"), 16ths (1") | -0.0035" to +0.005" | 1/2" | 1/64" | Flexible | Gold | Etched | 00000000 | 00000 |
| 12" | 32nds (4/32"), 64ths (8/64") | 8ths (1"), 16ths (1") | -0.0035" to +0.005" | 1" | 3/64" | Rigid | Gold | Etched | 00000000 | 00000 |
Inch/Metric—Left to Right Reading Direction | ||||||||||
Titanium Nitride (TiN) Coated Steel | ||||||||||
| 6"/150 mm | 32nds (4/32"), 64ths (8/64") | Millimeters (10 mm), 1/2 mm (10 mm) | -0.0035" to +0.004"/-0.09 mm to +0.1 mm | 1/2" | 1/64" | Flexible | Gold | Etched | 00000000 | 00000 |
| 6"/150 mm | 32nds (4/32"), 64ths (8/64") | Millimeters (10 mm), 1/2 mm (10 mm) | -0.0035" to +0.004"/-0.09 mm to +0.1 mm | 3/4" | 3/64" | Rigid | Gold | Etched | 00000000 | 00000 |
| 12"/300 mm | 32nds (4/32"), 64ths (8/64") | Millimeters (10 mm), 1/2 mm (10 mm) | -0.0035" to +0.005"/-0.09 mm to +0.13 mm | 1/2" | 1/64" | Flexible | Gold | Etched | 0000000 | 00000 |
| 12"/300 mm | 32nds (4/32"), 64ths (8/64") | Millimeters (10 mm), 1/2 mm (10 mm) | -0.0035" to +0.005"/-0.09 mm to +0.13 mm | 1" | 3/64" | Rigid | Gold | Etched | 00000000 | 00000 |
Magnetic High-Accuracy Rulers
Inch
Inch/Metric
High-powered magnets hold these rulers in place. Also known as machinists’ rules, these rulers ensure reliable, repeatable measurements. They meet Fed. Spec. GGG-R-791H, which establishes uniform standards for ruler accuracy, graduations, and size. All have a corrosion-resistant satin chrome-plated finish that reduces glare and wear-resistant etched markings. These rulers are labeled with numeric increments that are less than 1" for quick reading.
| Lg. | Front Graduation Marks (Numeric Increments) | Back Graduation Marks (Numeric Increments) | Accuracy | Wd. | Thick. | Flexibility | Color | Graduation Mark Style | No. of Magnets | Each | |
Inch—Left to Right Reading Direction | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Satin Chrome-Plated Steel | |||||||||||
| 6" | 64ths (8/64"), 32nds (4/32") | 8ths (1"), 16ths (1") | -0.0035" to +0.004" | 3/4" | 3/64" | Rigid | Silver | Etched | 2 | 0000000 | 000000 |
| 12" | 64ths (8/64"), 32nds (4/32") | 8ths (1"), 16ths (1") | -0.0035" to +0.005" | 1" | 3/64" | Rigid | Silver | Etched | 3 | 0000000 | 00000 |
| 24" | 64ths (8/64"), 32nds (4/32") | 8ths (1"), 16ths (1") | -0.0035" to +0.007" | 1 1/8" | 3/64" | Rigid | Silver | Etched | 5 | 0000000 | 00000 |
| 36" | 64ths (8/64"), 32nds (4/32") | 8ths (1"), 16ths (1") | -0.0035" to +0.007" | 1 1/8" | 3/64" | Rigid | Silver | Etched | 7 | 0000000 | 000000 |
Inch/Metric—Left to Right Reading Direction | |||||||||||
Satin Chrome-Plated Steel | |||||||||||
| 6"/150 mm | 32nds (4/32"), 64ths (8/64") | 1/2 mm (10 mm), Millimeters (10 mm) | -0.0035" to +0.004"/-0.09 mm to +0.1 mm | 3/4" | 3/64" | Rigid | Silver | Etched | 2 | 0000000 | 00000 |
| 12"/300 mm | 32nds (4/32"), 64ths (8/64") | 1/2 mm (10 mm), Millimeters (10 mm) | -0.0035" to +0.005"/-0.09 mm to +0.13 mm | 1" | 3/64" | Rigid | Silver | Etched | 3 | 0000000 | 00000 |
| 24"/600 mm | 32nds (4/32"), 64ths (8/64") | 1/2 mm (10 mm), Millimeters (10 mm) | -0.0035" to +0.007"/-0.09 mm to +0.18 mm | 1 1/8" | 3/64" | Rigid | Silver | Etched | 5 | 0000000 | 00000 |