Spring-loaded mechanism automatically centers itself for 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 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 . Designed with a standard 1/4" hex shank for instant compatibility with all electric drills-making every user an expert Color: As Shown Material: Metal Package Contents: 1*set self centering drill bit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.