Unique design: The special groove point is designed to quickly remove chips and increase drilling speed. Double-cut spurs can scribe externally to clean holes and reduce breakage Quick change and universal hex shank: The hexagonal shank groove guarantees non-slip and higher torque. The hex shank is compatible with 1/4 quick change chucks and is universal for most drill tools on the markets Excellent material: All spade bits are made from heat-treated carbon steel which provides long-term durability. The polished tip has strong wear resistance Multifunction: This set includes 8 high-performance flat drill bits: 6, 10, 13, 16, 19, 22, 25 and 32 mm. These spade bits are ideal for woodworking Portable and organized: It comes with a durable and portable pouch that is perfect for keeping your tools organized and carrying them to different workplaces Quantity delivered: 8 pieces luckymeet