Description:130mm Automatic Centre Punch Spring Loaded Press Dent MarkerSpecification:          Material       Chrome Vanadium Alloy Steel           Hardness       HRC58 ~65           Outer Diameter       Approx. 12.7mm\/ 0.5"           Length: Approx       131mm\/ 5.16"       Features: Handy automatic centre punch No hammer required - just push down with hand and spring action strikes the punch head. Gives a precise starting point on steel and other materials. Can also be used for breaking glass in an emergency.  Package Included: 1 x Automatic Centre Punch  More Details: