The IRWIN SPEEDBOR Blue Groove Spade Bit features a blue-groove point and cutting edge for ejecting chips four times faster than standard spade bits. These spade bits have double cutting spurs to scribe the outside of the hole to reduce breakout and 10% larger and 40% thicker grooved hex shanks* for added durability. Fits all standard quick change chucks. Model # 88818 Features: Blue-Groove drill bit point and cutting edge for fast chip removal Wood drill bit uses double-cutting spurs that scribe the outside of the hole, reducing breakout Flat drill bit features a large shank for added durability Grooved hex shank helps prevent slipping in the drill chuck or bit extension Fits most standard quick-change chucks Item Dimensions: 8. 3" L x 1. 9" W x 0. 2" H.
