The improved SPEEDBOR Spade Bits now last 2X Longer and cut 2X Faster. Next-generation SPEEDBOR Spade Bits feature a chamfered cutting edge for durability in cutting wood and optimized point tip that is wider and longer than previous IRWIN spade bits to minimize splintering and control speed. Patented Blue-Groove cutting edge allows for a large cutting area for aggressive removal of wood chips and fast drilling.Features Optimized point tip to help minimize splintering and control speed Impact accessible for use with impact drivers Last twice as long Cut twice as fast Reinforced shank for fast speeds and aggressive cut Patented blue-groovetm design for fast chip removal Chamfered cutting edges for increased durability and longer life Length: 18.5 in Width: 1.9 in Height: 0.4 in Weight: 0.443 lbs Battery Included: No Warranty: NLW Product Type: Spade Drill Bit Country of Origin: China