WORKPRO Spade Drill Bit Set - HIGH-CARBON STEEL 10-Piece 1/4" to 1-1/2"

PATENT-PENDING DESIGN: Optimized largest area groove for efficient and smooth chip removal, faster than standard spade bits. The cutting edge with unique double-side cutting spurs for grabbing wood and carving it away, creating beautiful holes with reduced breakout HIGH-CARBON STEEL: Constructed from high-carbon steel with fully heat-treated and black oxide coating for durability and hardness above HRC48, the head with the polished surface is made to ensure longevity and high wear resistance QUICK-CHANGE HEX SHANK: 1/4" hex shank with groove helps reduce slipping and prevent falling off as well as safety, universal for most drill driver tool brands in the markets VERSATILE: Set includes 10 high-performance drill bits. Size: 1/4", 3/8", 1/2", 9/16", 5/8", 3/4", 7/8", 1", 1-1/4", 1-1/2" KEEPS CLEAN: Our spade drill bit set also comes with an organizer. Perfect for storing your tools and ideal for carrying with you to work or around the house