Reamers
Finish holes to precise inch, metric, wire gauge, or letter sizes with these reamers.
Threaded Shank
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Straight Flute |
These reamers fit power drills that have a 1/4"-28 threaded spindle or adapter. Using a powered hand tool can affect alignment, so these have a built-in pilot that guides the reamer into the hole and keeps it straight.
Straight Flute—The most common flute style, these reamers are suitable for a wide range of applications, but not recommended for holes with a keyway or other breaks in the surface.
High-Speed Steel—Durable and wear resistant, these are good for general purpose reaming in most materials.
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Reamer Dia. | Pilot Dia. | Material | Flute | Pilot | Overall | No. of Flutes | Cutting Dia. Tolerance | Pilot Cutting Dia. Tolerance | For Use On | Each | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Straight Flute | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Inch | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0.1610" | 0.152" | High-Speed Steel | 1 1/2" | 1/2" | 2 1/8" | 6 | 0" to 0.0002" | -0.001" to 0" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0.1850" | 0.175" | High-Speed Steel | 1 1/2" | 1/2" | 2 1/8" | 6 | 0" to 0.0002" | -0.001" to 0" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0.1870" | 0.178" | High-Speed Steel | 1 1/2" | 1/2" | 2 1/8" | 6 | 0" to 0.0002" | -0.001" to 0" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0.1875" (3/16") | 0.178" | High-Speed Steel | 1 1/2" | 1/2" | 2 1/8" | 6 | 0" to 0.0002" | -0.001" to 0" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0.1890" | 0.180" | High-Speed Steel | 1 1/2" | 1/2" | 2 1/8" | 6 | 0" to 0.0002" | -0.001" to 0" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0.1910" | 0.180" | High-Speed Steel | 1 1/2" | 1/2" | 2 1/8" | 6 | 0" to 0.0002" | -0.001" to 0" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0.1935" | 0.183" | High-Speed Steel | 1 1/2" | 1/2" | 2 1/8" | 6 | 0" to 0.0002" | -0.001" to 0" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0.2031" (13/64") | 0.194" | High-Speed Steel | 1 1/2" | 1/2" | 2 1/8" | 6 | 0" to 0.0002" | -0.001" to 0" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0.2188" (7/32") | 0.207" | High-Speed Steel | 1 1/2" | 1/2" | 2 1/8" | 6 | 0" to 0.0002" | -0.001" to 0" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0.2344" (15/64") | 0.226" | High-Speed Steel | 1 1/2" | 1/2" | 2 1/8" | 6 | 0" to 0.0002" | -0.001" to 0" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0.2500" (1/4") | 0.240" | High-Speed Steel | 1 1/2" | 1/2" | 2 1/8" | 6 | 0" to 0.0002" | -0.001" to 0" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0.2656" (17/64") | 0.255" | High-Speed Steel | 1 1/2" | 1/2" | 2 1/8" | 6 | 0" to 0.0002" | -0.001" to 0" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0.2812" (9/32") | 0.270" | High-Speed Steel | 1 1/2" | 1/2" | 2 1/8" | 6 | 0" to 0.0002" | -0.001" to 0" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0.2969" (19/64") | 0.288" | High-Speed Steel | 1 1/2" | 1/2" | 2 1/8" | 6 | 0" to 0.0002" | -0.001" to 0" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0.3125" (5/16") | 0.300" | High-Speed Steel | 1 1/2" | 1/2" | 2 1/8" | 6 | 0" to 0.0002" | -0.001" to 0" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reamers for Hole Alignment
Enlarge holes to correct misalignment and overlap. Misaligned holes often have a narrow entry, so the tapered shape is easier to insert and makes more contact to remove the overlapping material. These are also known as bridge and car reamers.
Adjustable Size, Square Shank
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Angled Blade |
One tool both finishes multiple diameters and enlarges holes to correct misalignment and overlap. Also known as bridge and car reamers, they have a tapered shape that fits into the narrow entry of misaligned holes and makes more contact to remove the overlapping material. Change the reamer size by moving the adjustable blades within the diameter range.
Move the blades by tightening and loosening the two nuts on the reamer. To measure size, adjust blades to a known size (such as a bushing or ring), or measure across two opposite blades with a micrometer. When the blades become worn, they can be reground or replaced.
Turn these reamers by hand with an adjustable wrench or straight-handle tap wrench (sold separately).
Angled Blade—These reamers are better than those with straight blades for finishing holes with breaks in the surface, such as a keyway.
Tool Steel—Typically more economical but less durable than high-speed steel, these are for general purpose reaming.
Long Reach—Align holes spaced far apart with reamers that have a long, built-in pilot. A floating sleeve guides and steadies the pilot through holes.
Reamers | Replacement Blades | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Reamer Dia. | Material | Square Shank Size | Pilot | Overall | No. of Blades | Performance | For Use On | Each | Pkg. Qty. | Pkg. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Angled Blade | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| 0.4688" to 0.5313" (15/32" to 17/32") | Tool Steel | 0.1870" | 10" | 15 5/8" | 6 | Long Reach | Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, Titanium | 0000000 | 0000000 | 6 | 0000000 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0.5313" to 0.5938" (17/32" to 19/32") | Tool Steel | 0.2180" | 10" | 15 5/8" | 6 | Long Reach | Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, Titanium | 0000000 | 000000 | 6 | 0000000 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0.5938" to 0.6563" (19/32" to 21/32") | Tool Steel | 0.2810" | 12" | 18 5/8" | 6 | Long Reach | Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, Titanium | 0000000 | 000000 | 6 | 0000000 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0.7188" to 0.7813" (23/32" to 25/32") | Tool Steel | 0.3430" | 16" | 23 1/8" | 6 | Long Reach | Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, Titanium | 0000000 | 000000 | 6 | 0000000 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0.7813" to 0.8438" (25/32" to 27/32") | Tool Steel | 0.4060" | 16" | 23 1/2" | 6 | Long Reach | Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, Titanium | 0000000 | 000000 | 6 | 0000000 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0.9375" to 1.0625" (15/16" to 1 1/16") | Tool Steel | 0.5000" | 18" | 27 1/8" | 6 | Long Reach | Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, Titanium | 0000000 | 000000 | 6 | 0000000 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
