Grace USA 4-piece brass Starter Punch Set is made with utmost precision. The brass starter punches are manufactured from high quality CDA 360 hex brass rod extruded in a mill in the USA and beautifully polished. These punches are machine turned and designed for critical work were non-marring and non-sparking are of importance. This Set Includes 1/16 inches, 3/32 inches, 1/8 inches and 5/32 inches Starter Punches that are tapered, giving the brass punches added strength.