Material: Auger drill bit made of high carbon steel, hardened and tempered for longer useful life
8 different size: 9/23"(10mm), 9/19"(12mm), 5/9"(14mm), 7/11"(16mm), 5/7"(18mm), 11/14"(20mm), 13/15"(22mm), 63/64"(25mm) different size for your needs
Four Groove Design: Designed for 4precision ground cutting edges and 4 flutes engineered to optimize performance, easy for chip removing; With self feeding auger point, easy cutting of accurate diameter holes
Application: Woodworking drill bits ideal for making neat and clean holes into both hard wood and soft wood, plastic, etc
Compatible equipment: 1/4 hex shank, the drill bit can compatible with many equipment, like electric hand drill, rechargeable drill, bench drill, etc (Just suitable for 24V high‑power model rechargeable drill)