Blue-Groove point and cutting edge for faster chip removal. Double cutting spurs scribe the outside of the hole reducing breakout. 10\% larger shank for added durability.
16qt Playmate Cooler Igloo$30.99
7/16 Left Hand Drill BIt$26.99
1/4x6 Masonry Drill Bit$5.49
7/8 Spade Bit Irwin$4.99