Starrett Automatic Center Punches Diameter:7/16" The shear strength is 14

The shear strength is 14

Measurements: 11

The round handle on the Kant Twist clamps provide the ability to finely adjust the clamp pressure to your project and makes it easy to position your work

Blade Width 1-1/8"

Starrett Automatic Center Punches Diameter:7/16" The shear strength is 14These punches automatically strike a blow when downward pressure is applied. The force of the blow is regulated by the adjustable knurled cap. The point can be easily removed for replacement. All sizes are identical in style and differ only in the striking power. For gunsmithing. Made in the USA. Item # Diameter Length ST18AA 7 16 3 53 84" ST18A 9 16 4 13 18"