Irwin 3041014 Speedbor Max Wood Boring Drill Bit

Highlights: 9/16 X 6 ; Tri-Flute Design For Faster Chip Removal; 3 Cutting Spurs For Clean Holes With Minimal Breakout ; Six Times Faster Than Standard Spade Bits; Screw Tip Fully Heat Treated; Hex Shank For Quick Change Applications;