Precision Squares | McMaster-Carr

Filter by

System of Measurement

Blade Length

Blade Thickness

Blade Width

Material

Angle Measured

Length

Color

Head Length

Width

Square Head Material

Length Accuracy

-0.0035" to 0.005"

-0.0035" to 0.006"

-0.0035" to 0.007"

-0.0025" to 0.0025"

-0.002" to 0.002"

-0.002" to 0.004"

-0.11 mm to 0.25 mm

-0.09 mm to 0.15 mm

Shape

Export Control Classification Number (ECCN)

Measuring Component

Protractor Head

Square Head with Built-In Level

Performance

Scratch Resistant

DFARS Specialty Metals

REACH

RoHS

Manufacturer Model Number

Numeric Graduations

Thickness

Graduations

Component

Specifications Met

Fed. Spec. GGG-R-791

Fed. Spec. GGG-S-656

Sold As

How can we improve?

133 Products

Squares

High-Accuracy Squares

High-Accuracy Squares

Manufactured with precision to ensure reliable, repeatable angles

High-Accuracy Square Sets

High-Accuracy Square Sets

Multiple sizes made with precision to ensure reliable, repeatable angles

Squares with Adjustable Blade

Squares with Adjustable Blade

Measure and mark material exactly where you need to with a sliding blade

Laser Squares

Lay out machine tables and work stations at precise right angles

Starrett High-Accuracy Squares

Starrett High-Accuracy Squares

Manufactured with precision to ensure reliable, repeatable angles

Starrett High-Accuracy Combination Squares

Starrett High-Accuracy Combination Squares

Manufactured with precision to measure, mark, and level with a single tool

High-Accuracy Combination Squares

High-Accuracy Combination Squares

Manufactured with precision to measure, mark, and level with a single tool

Scratch-Resistant High-Accuracy Combination Squares

Scratch-Resistant High-Accuracy Combination Squares

A titanium coating protects the blade against scratches and wear

Other Products

Combination Square Heads

Combination Square Heads

Attach combination square blades to form a combination square

Combination Square Blades

Combination Square Blades

Connect to a combination square head to create a combination square

Calibration Squares

Calibration Squares

Lay horizontally or vertically on CNC machines to check the position of tools with high precision

Levels

Ensure surfaces are completely horizontal or vertical

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)