IRWIN Speedbor 10-Piece x Assorted Woodboring Spade Drill Bit Set Item #2660825 #IWAX10PC

Patented Blue-Groove point and cutting Double cutting spurs scribe the outside of the hole for reduced breakout and cleaner holes 40% Thicker cutting edge and enlarged shank for increased strength and longer drilling life 1/4-In quick-change shank reduces slipping in standard chucks and is compatible with all 1/4-in quick-change chucks, including impact drills