About Reamers
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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 | |||||||||
11 | 11.0000 | 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. | ||||||||
---|---|---|---|---|---|---|---|---|---|
Size, mm | Diameter, mm | Flute, mm | Overall, mm | Number of Flutes | Flute Style | Cutting Dia. Tolerance, mm | For Use On | Each | |
Carbide | |||||||||
11 | 11.0000 | 34.9 | 101.6 | 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. | ||||||||
---|---|---|---|---|---|---|---|---|---|
Size, mm | Diameter, mm | Flute, mm | Overall, mm | Number of Flutes | Flute Style | Cutting Dia. Tolerance, mm | For Use On | Each | |
Cobalt Steel | |||||||||
11 | 11.0000 | 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 | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | |||||||||||||
11 | 11.0000 | 9 | 71 | 142 | 6 | Spiral | Left Hand | Right Hand | 0.008 to 0.015 | DIN 206 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 0000000 |
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 | ||||||
---|---|---|---|---|---|---|
1-13 mm (Increments of 0.5 mm) | 25 | Straight | Metal Case | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 0000000 |