Irwin 88814 -7/8" Speedbor Bit

Key Features-10% larger shank for added durability;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;Fits all standard quick change chucks;Grooved hex shank prevents slipping in drill chuck or bit extension;Speedbor standard length 6 inch spade bits have 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.