- Set in metal index case includes drill bit sizes 1/16" through 1/2" in 1/64" increments
- Revolutionary tip design stays sharper longer and drills up to 28 percent faster than other leading drill bits
- Three-flatted shank design provides better chuck grip and reduces slippage. Ideal for use in keyless chucks
- Bit is constructed of M-2 high speed steel for the best combination of strength, heat resistance and wear resistance
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