This Grace USA 7-piece Roll Spring Punch Set is manufactured from the highest quality High Carbon Molybdenum Tool Steel and properly heat treated to ensure long life of the punch. Each punch is hardened the entire length with a tempered striking end and is centerless ground for complete accuracy. Reverse taper tips prevent punches from sticking in the work piece. The pilot point (ball on end) fits into the hollow center of the roll pin to prevent damage and gives added control for driving roll pins in or out. The Grace USA Roll Pin Punch has three identifying machine marks to help distinguish between our regular pin punches. Punches are manufactured from hex stock, not round, which keeps punches from rolling away on the workbench. 100% made in the USA.Kit Includes: 1/16" Punch5/64" Punch3/32" Punch1/8" Punch5/32" Punch3/16" Punch7/32" Punch