Spring-loaded mechanism automatically centers itself for flawless hinge and hardware screw holes. No more crooked drilling or wasted materials-just professional results in seconds High-speed steel drill bits wrapped in solid brass housing deliver unmatched durability. Electroplated finish resists corrosion while maintaining smooth operation through heavy use Dual-side ventilation channels actively eject wood debris during drilling. Prevents clogging and overheating for cleaner, faster, and more controlled drilling sessions From cabinet installation to furniture repair, this set adapts to any project. Includes 3/32", 7/64", and 9/64" bits optimized for #6 to #10 screws in wood, plastic, or soft metals Replace shaky hand-marking with one-click precision. Designed with a standard 1/4" hex shank for instant compatibility with all electric drills-making every user look like an expert Color: As Shown Material: Metal Package Contents: 1*set self centering drill bit