Starrett 18C Automatic Center Punch Heavy-Duty With Adjustable Stroke, 5-1/4" Length, 11/16" Diameter
Spring tension, which regulates the blow, is constant so marks made by the point are uniform in depth and size for each setting.
Internal mechanism automatically strikes a blow when downward pressure is applied
Adjustable knurled cap regulates the force of the blow
Rugged automatic punches with all-steel handles and parts
All sizes are identical in style, differing only in the striking power
The point can be easily removed for regrinding or replacement