5/16″ Irwin Speedbor Spade Bit (88805)

5/16″ Diameter
6″ Shank Length
1/4″ Shank Size

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 – 5/16 Irwin Speedbor Spade Bit

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