System of Measurement System of Measurement |
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Shank Type Shank Type |
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![]() | Round |
For Use On For Use On |
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Material Material |
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Reamer Size Reamer Size |
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Reamer Diameter Reamer Diameter | Show |
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Reamer Diameter Reamer Diameter | Hide |
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Container Type Container Type |
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Reamer Type Reamer Type |
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Spiral Direction Spiral Direction |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Cut Direction Cut Direction |
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Number of Flutes Number of Flutes |
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![]() | 6 |
RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Shank Diameter Shank Diameter |
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About Reamers
More
High-Speed Steel Round-Shank Reamers


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.
Reamer | Lg. | |||||||
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Size | Dia. | Flute | Overall | Number of Flutes | Cutting Diameter Tolerance | For Use On | Each | |
Straight Flute | ||||||||
21/64" | 0.3281" | 1 1/2" | 6" | 6 | 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 | |||||||||
21/64" | 0.3281" | 1 1/2" | 6" | 6 | Right Hand | 0" to 0.0002" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
Carbide Round-Shank Reamers

Solid carbide provides exceptional wear resistance and high accuracy in addition to excellent abrasion and heat resistance when cutting hard and abrasive materials. These reamers require rigid tool holding to prevent breakage and are not for use with hand-held tools.
For technical drawings and 3-D models, click on a part number.
Dia. | Lg. | |||||||||
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Reamer Size | Reamer | Shank | Flute | Overall | Number of Flutes | Flute Style | Cutting Dia. Tolerance | For Use On | Each | |
21/64" | 0.3281" | 21/64" | 1 1/4" | 3 1/2" | 6 | Straight | 0" to 0.0003" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool 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 | |||||||||
21/64" | 0.3281" | 1 1/2" | 6" | 6 | Straight | 0" to 0.0002" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 000000 |
Inch Size High-Speed Steel Reamer Sets


Straight-flute reamers are for general purpose cutting.
Spiral-flute reamers have a right-hand spiral and a right-hand cut. They pull chips upward as they cut, so they’re often used in blind holes. Spiral flutes create a smoother finish than straight flutes and work well in keyways and other applications with an interrupted cut.
For technical drawings and 3-D models, click on a part number.
Direction | |||||||
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Sizes Included | Number of Pieces | Spiral | Cut | Container Type | For Use On | Set | |
High-Speed Steel | |||||||
Straight Flute | |||||||
1/16"-1/2" (Increments of 1/64") | 29 | __ | __ | Metal Case | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 0000000 |
1/16"-1/2" (Increments of 1/64") | 29 | __ | __ | Wood Case | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 000000 | 000000 |
Spiral Flute | |||||||
1/16"-1/2" (Increments of 1/64") | 29 | Right Hand | Right Hand | Metal Case | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 000000 | 000000 |
Inch Size High-Speed Steel Drill-Length Reamer Sets


These reamers have the same overall length as jobbers’ drill bits for tool interchangeability. The overall length is shorter than standard-length reamers for added rigidity.
Straight-flute reamers are for general purpose cutting.
For technical drawings and 3-D models, click on a part number.
Sizes Included | Number of Pieces | Container Type | For Use On | Set | |
High-Speed Steel | |||||
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Straight Flute | |||||
1/16"-1/4" (Increments of 1/64") | 13 | Metal Case | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 000000 | 0000000 |
1/16"-1/2" (Increments of 1/64") | 29 | Metal Case | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 000000 | 000000 |