System of Measurement System of Measurement |
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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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Flute Style Flute Style |
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Straight | Spiral |
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Helical Spiral |
For Use On For Use On |
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Material Material |
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Container Type Container Type |
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Number of Pieces Number of Pieces |
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Number of Flutes Number of Flutes |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Spiral Direction Spiral Direction |
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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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Square Shank Size Square Shank Size |
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Application Application |
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Hex Shank Size Hex Shank Size |
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About Reamers
More
Metric Size High-Speed Steel Round-Shank Reamers
The shank diameter is slightly smaller than the reamer diameter.
For technical drawings and 3-D models, click on a part number.
Reamer | Lg. | ||||||||
---|---|---|---|---|---|---|---|---|---|
Size, mm | Diameter, mm | Flute, mm | Overall, mm | Number of Flutes | Flute Style | Cutting Dia. Tolerance, mm | For Use On | Each | |
High-Speed Steel | |||||||||
10 | 10.0000 | 44.4 | 177.8 | 6 | Straight | 0 to 0.005 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
Metric Size Carbide Round-Shank Reamers

For high accuracy, a long tool life, and excellent performance on hard and abrasive materials, solid carbide provides strength, hardness, and wear resistance. These reamers require rigid tool holding to prevent breakage and are not for use with hand-held tools. 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, mm | Diameter, mm | Flute, mm | Overall, mm | Number of Flutes | Flute Style | Cutting Dia. Tolerance, mm | For Use On | Each | |
Carbide | |||||||||
10 | 10.0000 | 31.8 | 88.9 | 6 | Straight | 0 to 0.0076 | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 0000000 |
Metric Size Cobalt Steel Round-Shank Reamers


Cobalt steel has 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, mm | Diameter, mm | Flute, mm | Overall, mm | Number of Flutes | Flute Style | Cutting Dia. Tolerance, mm | For Use On | Each | |
Cobalt Steel | |||||||||
10 | 10.0000 | 44.5 | 177.8 | 6 | Straight | 0 to 0.005 | Aluminum, Brass, Bronze, Hardened Steel, Iron, Plastic, Stainless Steel, Steel, Tool Steel | 0000000 | 000000 |
Metric Size Hand Reamers

Turn these reamers by hand with a straight-handle tap wrench (sold separately). The cutting end is slightly tapered to ease hole entry for the final sizing of drilled holes. Choose a straight-handle tap wrench that fits the diameter of your hand reamer. The flutes have a left-hand spiral and a right-hand cut. They push chips downward as they cut, so they’re often used in through holes. Spiral flutes also work well in keyways and other applications with an interrupted cut.
For technical drawings and 3-D models, click on a part number.
Reamer | Lg. | Direction | |||||||||||
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Size, mm | Dia., mm | Square Shank Size, mm | Flute, mm | Overall, mm | Number of Flutes | Flute Style | Spiral | Cut | Cutting Dia. Tolerance, mm | Specifications Met | For Use On | Each | |
High-Speed Steel | |||||||||||||
10 | 10.0000 | 8 | 66 | 133 | 6 | Spiral | Left Hand | Right Hand | 0.006 to 0.012 | DIN 206 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 0000000 |
Hex Nut-Shank Reamers for Hole Alignment with Safety Magnets

Magnets on the hex nut hold the reamer in place in your tool and prevent it from accidentally falling when not in the square-drive impact wrench socket. Also known as bridge reamers, car reamers, and aligning reamers, they ream, true, enlarge, align, and debur holes. All have tapered ends for easy entry into misaligned holes. Do not use for reaming tapered holes.
Reamers with helical-spiral flutes create a fine finish and reduce the chance of breakage because they move chips forward, which prevents the chips from packing into the flutes.
Reamer Dia. | Lg. | Direction | |||||||||
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Reamer Size | (A) | (B) | Hex Shank Size | Flute | Overall | Spiral | Cut | Cutting Dia. Tolerance | For Use On | Each | |
High-Speed Steel | |||||||||||
Helical Spiral | |||||||||||
18 mm | 18.0000mm | 10.0000mm | 24mm | 114mm | 165mm | Left Hand | Right Hand | 0mm to 0.254mm | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 000000 |
Metric Size High-Speed Steel Reamer Sets

For technical drawings and 3-D models, click on a part number.
Sizes Included | Number of Pieces | Flute Style | Container Type | For Use On | Set | |
High-Speed Steel | ||||||
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1-13 mm (Increments of 0.5 mm) | 25 | Straight | Metal Case | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 0000000 |