- Diameter: #21
- Decimal Equivalent: .1590"
- Flute Length: 2-1/8"
- Overall Length: 3-1/4"
- 135° Split Point
- Shank: Straight
- Gold Oxide Finish
- Designed For Metal And Wood Cutting
- Pilot Hole For 10/32 Tapping
- Cobalt Drills Maintain Their Cutting Ability At High Temperatures And Are Extremely Resistant
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