System of Measurement System of Measurement |
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Reamer Diameter Reamer Diameter |
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Flute Style Flute Style |
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![]() | Spiral |
Application Application |
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Shank Type Shank Type |
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![]() | Square |
Material Material |
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Reamer Type Reamer Type |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Spiral Direction Spiral Direction |
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About Reamers
More
Reamers for Taper-Pipe Holes

Use these reamers before tapping with taper-pipe taps. Turn by hand with a straight-handle tap wrench (sold separately). Flutes have a left-hand spiral and a right-hand cut and push chips downward, so they are commonly used in through holes.
For technical drawings and 3-D models, click on a part number.
Reamer Dia. | Lg. | Direction | |||||||||||
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For Pipe Size | (A) | (B) | Square Shank Size | Flute | Overall | Number of Flutes | Flute Style | Spiral | Cut | Cutting Dia. Tolerance | For Use On | Each | |
High-Speed Steel | |||||||||||||
1/8 | 0.3620" | 0.3160" | 0.3280" | 3/4" | 2 1/8" | 6 | Spiral | Left Hand | Right Hand | -0.001" to 0.001" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
1/4 | 0.4720" | 0.4060" | 0.4210" | 1 1/16" | 2 7/16" | 6 | Spiral | Left Hand | Right Hand | -0.001" to 0.001" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
3/8 | 0.6060" | 0.5400" | 0.5310" | 1 1/16" | 2 9/16" | 6 | Spiral | Left Hand | Right Hand | -0.001" to 0.001" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
1/2 | 0.7510" | 0.6650" | 0.5150" | 1 3/8" | 3 1/8" | 6 | Spiral | Left Hand | Right Hand | -0.001" to 0.001" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
3/4 | 0.9620" | 0.8760" | 0.6790" | 1 3/8" | 3 1/4" | 8 | Spiral | Left Hand | Right Hand | -0.001" to 0.001" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
1 | 1.2120" | 1.1030" | 0.8430" | 1 3/4" | 3 3/4" | 10 | Spiral | Left Hand | Right Hand | -0.001" to 0.001" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |