Description:  This is a very popular tool for jewelers, hobbyist, and machinists.  This spring loaded punch punches automatically when you press down firmly into the surface you want to mark.  It makes a very noticable dent or divit so you can start drills easily.  It has an adjustable strength setting for light or harder "hits", a hardened tip to handle hard metal, and a solid brass body for long life. 
 
Approximate Size:  4 3/4" long, 1/2" wide body
Material:  Hardened steel tip, brass body
 
Made In China