About Drill Bits
Compare material, finish, length class, and decimal size equivalents.
About Reamers
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Round-Shank Drill Reamers
Drill and finish holes in a single pass with these dual-purpose tools. The tapered tip gradually pierces your material to reduce friction, and the straight flutes make clean cuts without chipping or peeling the edge of the hole. Made from solid carbide, these drill reamers are strong and heat resistant. The flutes stay sharp even when cutting abrasive materials such as carbon fiber, fiberglass, and graphite. Use them in drill presses or other machines—carbide is brittle, and will break if used to drill by hand.
Dia. | Lg. | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Reamer Size | Reamer | Shank | Max. Drilling Dp. | Flute | Overall | Number of Flutes | Flute Style | Cutting Dia. Tolerance | For Use On | Each | |
Carbide | |||||||||||
Inch | |||||||||||
| 1/8" | 0.1250" | 1/8" | 0.75" | 3/4" | 3" | 4 | Straight | 0" to 0.0005" | Carbon Fiber, Fiberglass, Graphite | 0000000 | 000000 |
| 3/16" | 0.1875" | 0.187" | 1.06" | 1 1/16" | 3" | 4 | Straight | 0" to 0.0005" | Carbon Fiber, Fiberglass, Graphite | 0000000 | 00000 |
| 13/64" | 0.2031" | 0.203" | 2" | 2" | 4" | 4 | Straight | 0" to 0.0005" | Carbon Fiber, Fiberglass, Graphite | 0000000 | 000000 |
| 7/32" | 0.2188" | 0.219" | 2.13" | 2 1/8" | 4" | 4 | Straight | 0" to 0.0005" | Carbon Fiber, Fiberglass, Graphite | 0000000 | 000000 |
| 1/4" | 0.2500" | 1/4" | 2.13" | 2 1/8" | 4" | 4 | Straight | 0" to 0.0005" | Carbon Fiber, Fiberglass, Graphite | 0000000 | 000000 |
| 9/32" | 0.2812" | 0.281" | 2.75" | 2 3/4" | 4" | 4 | Straight | 0" to 0.0005" | Carbon Fiber, Fiberglass, Graphite | 0000000 | 000000 |
| 19/64" | 0.2969" | 0.297" | 2.94" | 2 15/16" | 4" | 4 | Straight | 0" to 0.0005" | Carbon Fiber, Fiberglass, Graphite | 0000000 | 000000 |
| 5/16" | 0.3125" | 0.312" | 1.81" | 1 13/16" | 4" | 4 | Straight | 0" to 0.0005" | Carbon Fiber, Fiberglass, Graphite | 0000000 | 000000 |
| 21/64" | 0.3280" | 0.328" | 1.88" | 1 7/8" | 4" | 4 | Straight | 0" to 0.0005" | Carbon Fiber, Fiberglass, Graphite | 0000000 | 000000 |
| 11/32" | 0.3438" | 0.344" | 2" | 2" | 4" | 4 | Straight | 0" to 0.0005" | Carbon Fiber, Fiberglass, Graphite | 0000000 | 000000 |
| 3/8" | 0.3750" | 3/8" | 2.19" | 2 3/16" | 4" | 4 | Straight | 0" to 0.0005" | Carbon Fiber, Fiberglass, Graphite | 0000000 | 000000 |
| 25/64" | 0.3900" | 0.39" | 3.06" | 3 1/16" | 6" | 4 | Straight | 0" to 0.0005" | Carbon Fiber, Fiberglass, Graphite | 0000000 | 000000 |
| 7/16" | 0.4375" | 0.437" | 3.44" | 3 7/16" | 6" | 4 | Straight | 0" to 0.0005" | Carbon Fiber, Fiberglass, Graphite | 0000000 | 000000 |
| 1/2" | 0.5000" | 1/2" | 3.94" | 3 15/16" | 6" | 4 | Straight | 0" to 0.0005" | Carbon Fiber, Fiberglass, Graphite | 0000000 | 000000 |
Wire Gauge | |||||||||||
| 40 ga | 0.0980" | 0.098" | 0.56" | 9/16" | 3" | 4 | Straight | 0" to 0.0005" | Carbon Fiber, Fiberglass, Graphite | 0000000 | 00000 |
| 30 ga | 0.1285" | 0.128" | 0.75" | 3/4" | 3" | 4 | Straight | 0" to 0.0005" | Carbon Fiber, Fiberglass, Graphite | 0000000 | 00000 |
| 20 ga | 0.1610" | 0.161" | 0.94" | 15/16" | 3" | 4 | Straight | 0" to 0.0005" | Carbon Fiber, Fiberglass, Graphite | 0000000 | 00000 |
| 11 ga | 0.1910" | 0.191" | 1.88" | 1 7/8" | 4" | 4 | Straight | 0" to 0.0005" | Carbon Fiber, Fiberglass, Graphite | 0000000 | 000000 |
| 10 ga | 0.1935" | 0.193" | 1.88" | 1 7/8" | 4" | 4 | Straight | 0" to 0.0005" | Carbon Fiber, Fiberglass, Graphite | 0000000 | 000000 |
| 7 ga | 0.2010" | 0.201" | 2" | 2" | 4" | 4 | Straight | 0" to 0.0005" | Carbon Fiber, Fiberglass, Graphite | 0000000 | 000000 |
| 2 ga | 0.2210" | 0.221" | 2.19" | 2 3/16" | 4" | 4 | Straight | 0" to 0.0005" | Carbon Fiber, Fiberglass, Graphite | 0000000 | 000000 |
| 1 ga | 0.2280" | 0.228" | 2.25" | 2 1/4" | 4" | 4 | Straight | 0" to 0.0005" | Carbon Fiber, Fiberglass, Graphite | 0000000 | 000000 |