6 Piece, Hex Shank Drill Bit Set, Durable Rubber Finger Grips For Comfortable Use, Impact & Rust Resistant Nickel Plated Nose, Stainless Steel Interior Parts & A Pressure Activated Ball Groove System For Rapid Loading & Strong Retention, Provides Quick & Easy Accessory Changes Without Rechucking, Accessories Have A Hex Shank Locking System To Prevent Slipping, Rapid Load Holder Fits All Brands Of 3/8″ & 1/2″ Cordless & Corded Drills, Set Contains 1/16″, 3/32″, 1/8″, 5/32″, 3/16″, & 1/4″ Hex Shank Drill Bits.