Neiko 02639A 6-Inch Automatic Center Hole Punch With Adjustable One-Handed NEIKO presents our 02639A 6-Inch Automatic Center Hole Punch designed for punching, marking, scribing, and staking various surfaces. Each metal scribe puncher has a chrome-plated body for corrosion resistance and a hardened S2 steel tip that can withstand high-impact force and pressure. DRILL PUNCH TOOL: This 6-Inch Automatic Center Hole Punch is the perfect centering punch device to help start screw and drilling holes. Align the tip of this metal hole punch on a variety of hard surfaces to create center holes for fasteners. ADJUSTABLE HOLE-PUNCH TOOL: The spring-loaded center-punch design uses spring tension that can be modified and adjusted for light or heavy marking, punching, or staking. Change the strike force any time to match the surface you are working with. QUALITY MATERIALS: With a chrome-plated shank body and a hardened S2 steel tip, this corrosion-resistant wood-and-metal punch tool can withstand high-impact punches and force. The knurled, nonslip cap gives you a firm one-handed grip on the tool. EASY ONE-HANDED USE: This one-handed automatic center punch needs only your hands?no hammer required. Use the S2 tip on a sturdy surface to center where you want the starter hole, and punch the tool downward to create the drill marker. COMPACT SIZE: This automatic one-hand punch is small enough to fit in any toolbox or pocket. Carry it with you from job to job for a convenient and easy starter drill bit. You can also use this as a spring-loaded glass breaker for emergencies.