IRWIN Tools SPEEDBOR Spade Bit StandardLength 6Piece Set 88886

Set of 6 Common Sizes, Drills holes 2X faster*. More Holes. Less Time, Lasts 2X Longer* to get more done, Chamfered cutting edges for increased durability, Patented Blue Groove parabolic scoop for faster chip removal, Designed for impact drivers with 1/4" impact rated shank, Drill bits feature a Blue-Groove point and cutting edge for fast chip removal, Spade bits use double-cutting spurs that scribe the outside of the hole, reducing breakout, Flat drill bit design features a large shank for added durability, Grooved hex shank helps prevent slipping in the drill chuck or bit extension, Drill bit set includes 3/8", 1/2", 5/8", 3/4", 7/8" and 1" drill bits