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About Drill Bits
Compare material, finish, length class, and decimal size equivalents.
About Reamers
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Hole-Enlarging Drill Bits
Enlarge existing holes without changing their depth. These bits have flutes with a right-hand spiral and a right-hand cut. The flutes pull chips upward as they cut for use in blind holes.
For technical drawings and 3-D models, click on a part number.
Lg. | Direction | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Reamer Size | Drill Bit Size | For Min. Hole Dia. | Shank Dia. | Max. Drilling Dp. | Flute | Overall | Number of Flutes | Flute Style | Spiral | Cut | Cutting Dia. Tolerance | For Use On | Each | |
Black and Gold Oxide Tool Steel | ||||||||||||||
| 3/8" | 3/8" | 1/4" | 3/8" | 1 3/4" | 1 7/8" | 4 5/16" | 4 | Spiral | Right Hand | Right Hand | -0.001" to 0" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
| 1/2" | 1/2" | 5/16" | 1/2" | 1 3/4" | 1 7/8" | 4 5/16" | 4 | Spiral | Right Hand | Right Hand | -0.001" to 0" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
| 9/16" | 9/16" | 3/8" | 1/2" | 1 3/4" | 1 7/8" | 4 5/16" | 4 | Spiral | Right Hand | Right Hand | -0.001" to 0" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
| 5/8" | 5/8" | 25/64" | 1/2" | 1 3/4" | 1 7/8" | 4 5/16" | 4 | Spiral | Right Hand | Right Hand | -0.001" to 0" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
| 11/16" | 11/16" | 7/16" | 1/2" | 1 3/4" | 1 7/8" | 4 5/16" | 4 | Spiral | Right Hand | Right Hand | -0.001" to 0" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
| 3/4" | 3/4" | 15/32" | 1/2" | 1 3/4" | 1 7/8" | 4 5/16" | 4 | Spiral | Right Hand | Right Hand | -0.001" to 0" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |