About Reamers
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High-Speed Steel Round-Shank Reamers

The shank diameter is slightly smaller than the reamer diameter.
Straight-flute reamers are for general purpose cutting.
For technical drawings and 3-D models, click on a part number.
Reamer | Lg. | |||||||
---|---|---|---|---|---|---|---|---|
Size | Dia. | Flute | Overall | Number of Flutes | Cutting Dia. Tolerance | For Use On | Each | |
Straight Flute | ||||||||
0.4720" | 0.4720" | 2" | 7" | 6 | 0" to 0.0002" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 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. | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Reamer Size | Reamer | Shank | Flute | Reach | Overall | Number of Flutes | Flute Style | Cutting Dia. Tolerance | For Use On | Each | |
0.4720" | 0.4720" | 31/64" | 1 7/16" | 2 7/8" | 4" | 6 | Straight | 0" to 0.0002" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 0000000 |
Reamers for Taper-Pipe Holes

Use these reamers before tapping with taper-pipe taps. Turn by hand with a straight-handle tap wrench (sold separately). Flutes have a left-hand spiral and a right-hand cut and push chips downward, so they are commonly used in through holes.
For technical drawings and 3-D models, click on a part number.
Reamer Dia. | Lg. | Direction | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Pipe Size | (A) | (B) | Square Shank Size | Flute | Overall | Number of Flutes | Flute Style | Spiral | Cut | Cutting Dia. Tolerance | For Use On | Each | |
High-Speed Steel | |||||||||||||
1/4 | 0.4720" | 0.4060" | 0.4210" | 1 1/16" | 2 7/16" | 6 | Spiral | Left Hand | Right Hand | -0.001" to 0.001" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |