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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![]() | Helical Spiral |
Shank Type Shank Type |
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![]() | Round |
Reamer Type Reamer Type |
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Application Application |
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Rate of Taper Rate of Taper |
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Spiral Direction Spiral Direction |
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Number of Flutes Number of Flutes |
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![]() | 3 |
Cut Direction Cut Direction |
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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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Material Material |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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About Reamers
More
Metric Size Round-Shank Reamers for Taper-Pin Holes

Use these tools to accurately ream existing holes for standard taper pins. The helical flutes have a left-hand spiral that pushes chips downward to reduce the risk of breakage and create a smooth finish.
For technical drawings and 3-D models, click on a part number.
Reamer Dia. | Lg. | Direction | |||||||||||
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For Taper Pin Number, mm | (A), mm | (B), mm | Flute, mm | Overall, mm | Number of Flutes | Flute Style | Spiral | Cut | Cutting Dia. Tolerance, mm | Rate of Taper | For Use On | Each | |
High-Speed Steel | |||||||||||||
2 | 2.8600 | 1.9000 | 48 | 73 | 3 | Helical Spiral | Left Hand | Right Hand | -0.0254 to 0.0254 | 1/4" per 12" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 000000 |
2.5 | 3.4600 | 2.4000 | 53 | 79 | 3 | Helical Spiral | Left Hand | Right Hand | -0.0254 to 0.0254 | 1/4" per 12" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
3 | 4.1600 | 2.9000 | 63 | 88 | 3 | Helical Spiral | Left Hand | Right Hand | -0.0254 to 0.0254 | 1/4" per 12" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
4 | 5.4000 | 3.9000 | 75 | 100 | 3 | Helical Spiral | Left Hand | Right Hand | -0.0254 to 0.0254 | 1/4" per 12" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
5 | 6.6400 | 4.9000 | 87 | 115 | 3 | Helical Spiral | Left Hand | Right Hand | -0.0254 to 0.0254 | 1/4" per 12" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
6 | 8.2800 | 5.9000 | 119 | 150 | 3 | Helical Spiral | Left Hand | Right Hand | -0.0254 to 0.0254 | 1/4" per 12" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
8 | 10.7200 | 7.9000 | 141 | 177 | 3 | Helical Spiral | Left Hand | Right Hand | -0.0254 to 0.0254 | 1/4" per 12" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
10 | 13.1600 | 9.9000 | 163 | 205 | 3 | Helical Spiral | Left Hand | Right Hand | -0.0254 to 0.0254 | 1/4" per 12" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 000000 |
12 | 15.7400 | 11.8600 | 194 | 240 | 3 | Helical Spiral | Left Hand | Right Hand | -0.0254 to 0.0254 | 1/4" per 12" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 000000 |
13 | 16.7400 | 12.8000 | 194 | 240 | 3 | Helical Spiral | Left Hand | Right Hand | -0.0254 to 0.0254 | 1/4" per 12" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 000000 |