Thought I would share this info:
Great buy for me was a Proto 3/16" Tip Super-Duty Roll Pin Punch. The center ball makes installing the roll pins in the moulds in the Master Caster a snap. I sure other firms manufacture the same, but I like Proto punches.
Part # J49316
Features and Benefits
Specially designed ball in center of tip fits inside the roll pin to prevent damage to the pin
Made from tool steel and specially heat treated for greater strength and ductility
Modified parabolic striking end for greater resistance to mushrooming and chipping
Product Details
Length 5-7/16"
Weight 0.1 lbs
Striking Face Diameter 3/8"
Tip Width 3/16"