System of Measurement System of Measurement |
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Reamer Diameter Reamer Diameter |
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Reamer Size Reamer Size |
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Material Material |
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Shank Type Shank Type |
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 | Round |
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
Undersized High-Speed Steel Round-Shank Reamers
Straight
Spiral
These reamers create a tighter fit than standard reamer sizes. The reamer diameter accounts for the 0.001” undersized diameter rating. 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. With a right-hand spiral, they 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.
Reamer | Lg. | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Size | Dia. | Flute | Overall | Number of Flutes | Cut Direction | Cutting Dia. Tolerance | For Use On | Each | |
High-Speed Steel | |||||||||
Straight Flute | |||||||||
| 0.1240" | 0.1240" | 7/8" | 3 1/2" | 4 | __ | 0" to 0.0002" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
| 0.1865" | 0.1865" | 1 1/8" | 4 1/2" | 6 | __ | 0" to 0.0002" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 0.2490" | 0.2490" | 1 1/2" | 6" | 6 | __ | 0" to 0.0002" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 0.3115" | 0.3115" | 1 1/2" | 6" | 6 | __ | 0" to 0.0002" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 0.3740" | 0.3740" | 1 3/4" | 7" | 6 | __ | 0" to 0.0002" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 0.4365" | 0.4365" | 1 3/4" | 7" | 6 | __ | 0" to 0.0002" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 0.4990" | 0.4990" | 2" | 8" | 6 | __ | 0" to 0.0002" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 0.5615" | 0.5615" | 2" | 8" | 8 | __ | 0" to 0.0003" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 0.6240" | 0.6240" | 2 1/4" | 9" | 8 | __ | 0" to 0.0003" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 0.6865" | 0.6865" | 2 1/4" | 9" | 8 | __ | 0" to 0.0003" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 0.7490" | 0.7490" | 2 1/4" | 9" | 8 | __ | 0" to 0.0003" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
| 0.8115" | 0.8115" | 2 1/2" | 9 1/2" | 8 | __ | 0.0001" to 0.0004" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
| 0.8740" | 0.8740" | 2 5/8" | 10" | 8 | __ | 0" to 0.0004" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
| 0.9990" | 0.9990" | 2 5/8" | 10" | 10 | __ | 0" to 0.0004" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
Spiral Flute | |||||||||
| 0.1240" | 0.1240" | 7/8" | 3 1/2" | 4 | Right Hand | 0" to 0.0002" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 0.1865" | 0.1865" | 1 1/8" | 4 1/2" | 6 | Right Hand | 0" to 0.0002" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 0.2490" | 0.2490" | 1 1/2" | 6" | 6 | Right Hand | 0" to 0.0002" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 0.3115" | 0.3115" | 1 1/2" | 6" | 6 | Right Hand | 0" to 0.0002" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 0.3740" | 0.3740" | 1 3/4" | 7" | 6 | Right Hand | 0" to 0.0002" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 0.4365" | 0.4365" | 1 3/4" | 7" | 6 | Right Hand | 0" to 0.0002" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 0.4990" | 0.4990" | 2" | 8" | 6 | Right Hand | 0" to 0.0002" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |