KING DO WAY 4 Pcs HSS Self Centering Door Hinge Twist Wood Drill Bits 5/64''7/64''9/64''11/64'' Material:Brass,HSS; Color: Sliver Quick change bit system for fast, one-handed load and release. Made of high speed steel with a brass body, this highly durable hinge drill bit set lets you to put hinges right where you want them. Easy to use and install,change bits without re-chucking. The set includes four popular sizes to drill through metal, plastic, wood and more.