This automatic hand punch tool with a spring loaded mechanism that actually works and makes a solid mark in wood, metal, steel, aluminum, brass, copper and more.It will not slip and offer more precise handling and control. Each metal hardened and chrome plated tip lasts for hundreds of strikes so you can get the job done Automatic Spring Loads Then Releases At Top Of Cycle With Force To Create Centre Punch (No Hammer Needed)Name:Automatic Center PunchMaterial:High Speed Steel+Carbon SteelColor:Silver+BlackSize:128mmQuantity:2pcsPackage Contents:2 x Center PunchOnly the above package content, other products are not included.Note: Light 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.