2PC Irwin 88809 Speedbor 9/16 By 6 Inch Flat Wood Boring Spade Bit

Key Features;Blue-groove point and cutting edge for faster chip removal and 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;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.