Automatic Center Punch - 5 inch Black Steel Spring Loaded Center Hole Punch, Adjustable Tension Punch Tool for Metal Wood Glass Plastic (2 Pack)

AMAZING TOOL THAT MAKES STRIKING A CENTER HOLE EASY! This Automatic Center Hole Punch Has Everything You Want in a machinist and woodworking hand tool it's Easy to See Why Customers Love it with Specs Like:Adjustable Tension Lever Dimensions 5" Length x 1/2" Diameter Hardened Steel Tip Deep Knurls for non-slip design Easy one hand operation Pack of 2How to use center punch? 1. Adjust to the required spring tension and use the thimble to the position. The center punch is perpendicular to the test surface of the specimen. 2. Hold the handle and press the workpiece hard in the direction of drilling. 3. When the thimble is pressed into the handle, a "DUANG" sound will sound and the internal spring will pop out of the thimble, The positioning hole can be accurately made.