Irwin 88807 7/16 speedbor bit

Standard Length 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 or bit extension
•  Fits all standard quick change chucks