"STARRETT 18A AUTOMATIC CNTR PUNCH,LENGTH 125MM/5"", DIAMETER 14MM/9/16"""

Rugged automatic centre punch with an all-steel handle and internal mechanism for reliable, one-handed operation. Automatically delivers a striking blow when downward pressure is applied, eliminating the need for a hammer and leaving one hand free to steady the workpiece. Striking power can be adjusted to suit different applications, while the removable point can be easily re-ground or replaced.