21-pieceset in metal index case includes drill bit sizes 1/16" through 3/8"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