GOTRAYS 8-Piece Set Automatic Center Punch, Automatic Center Punch, Spring Loaded Center Punch, Automatic Punch with Adjustable Striking Force for Wood,

[MATERIAL] Mark the starting point with a metal rod (steel, aluminum, brass, copper), wood, glass, leather, or plastic and prevent the drill or screw from slipping. [ADJUSTABLE] The automatic center punch has a built-in spring to adjust the tension, you can adjust the cover clockwise or counterclockwise to get it just right and keep it very good. [WIDELY USED] The automatic center punch can be used as a manual punch tool on wood, soft metal, and glass; it can also be used to break car windows, allowing you to escape in an emergency situation. [EASY TO USE] Simple one-handed operation, no hammer is required. Anyone who only has one hand for hammering won't want to be without this tool. You'll find the self-centering punch a great addition to your home toolbox. [Specifications]The set includes 8 self-centering punches and 8 replacement punches. Compact appearance and shape, easy to carry.