Irwin Industrial 3018012SM 7 Pc. Turbomax Drill Bit Set

• Revolutionary tip design stays sharper longer and drills up to 10x 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
• 3/8" reduced shank fits all 3/8" drills
• Includes 1/16, 3/32, 1/8, 5/32, 1/4, 7/32, 3/16