Irwin JOBBER DRILL BIT SPIRAL FLUTE 4-3/16 I 73629

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Irwin 73629 Jobber Drill Bit Spiral Flute 4-3/16 In L Flute Reduced Shank 29/64 In Dia X 1-4/9 In L Shank

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 in reduced shank fits all 3/8 in drills

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