Blue-Groove point and cutting edge for faster chip removal - 4x faster than standard spade bits
Double cutting spurs scribe the outside of the hole reducing breakout
10% larger shank for added durability
Grooved hex shank prevents slipping in drill chuck
Fits all standard quick change chucks
Extra-Long Spade Bits - Blue-Groove point and cutting edge for faster chip removal - 4x faster than standard spade bits. Double cutting spurs scribe the outside of the hole reducing breakout. 10% larger shank for added durability. Grooved hex shank prevents slipping in drill chuck. Fits all standard quick change chucks. Not for use with bit extensions.