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Reamer Size Reamer Size |
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Reamer Diameter Reamer Diameter | Show |
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For Use On For Use On |
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Number of Flutes Number of Flutes |
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![]() | 4 |
DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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![]() | Round |
Spiral Direction Spiral 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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Cut Direction Cut Direction |
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About Reamers
More
High-Speed Steel Round-Shank Reamers

With Straight Flutes

With Right-Hand Spiral Flutes
The shank diameter is slightly smaller than the reamer diameter.
Straight-flute reamers are for general purpose cutting.
Spiral-flute reamers create a smoother finish than straight flutes and work well in keyways and other applications with an interrupted cut. Reamers with a right-hand spiral pull chips upward as they cut, so they’re often used in blind holes.
For technical drawings and 3-D models, click on a part number.
High-Speed Steel
Reamer | Lg. | |||||||
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Size | Dia. | Flute | Overall | Number of Flutes | Cutting Dia. Tolerance | For Use On | Each | |
Straight Flute | ||||||||
3/64" | 0.0469" | 1/2" | 2 1/2" | 4 | 0" to 0.0002" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 000000 |
Reamer | Lg. | ||||||||
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Size | Dia. | Flute | Overall | Number of Flutes | Cut Direction | Cutting Dia. Tolerance | For Use On | Each | |
Right-Hand Spiral Flute | |||||||||
3/64" | 0.0469" | 1/2" | 2 1/2" | 4 | Right Hand | 0" to 0.0002" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
Cobalt Steel Round-Shank Reamers

Choose these cobalt steel reamers for good performance on hard-to-machine materials. The shank diameter is slightly smaller than the reamer diameter.
For technical drawings and 3-D models, click on a part number.
Reamer | Lg. | ||||||||
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Size | Dia. | Flute | Overall | Number of Flutes | Flute Style | Cutting Dia. Tolerance | For Use On | Each | |
Cobalt Steel | |||||||||
3/64" | 0.0469" | 1/2" | 2 1/2" | 4 | Straight | 0" to 0.0002" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 000000 |