IRWIN SPEEDBOR Blue Groove Pro - 8-Piece

Visible clear lid of the drill bit set are desgined for easy viewing of contents Stackable - for convenient travel and storage of the drill bits for wood Accessible drill bits for wood are made for customizable kits Drills holes 2 times faster Lasts 2 times longer Chamfered cutting edges for increased durability Patented Blue Groove parabolic scoop for faster chip removal Designed for impact drivers with 1/4-inch impact rated shank