GRACE USA 20 Pc Brass Punch Set included with our new Grace USA Bench Top Holder is made with utmost precision. The brass 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. The set constists of eight brass pin punches sizes 1/16", 3/32", 1/8", 5/32", 3/16", 7/32", 1/4", 5/16"; eight brass roll pin punches sizes 1/16", 3/32", 1/8", 5/32", 3/16", 7/32", 1/4", 5/16"; four brass starter punches sizes 1/ Mfg: Grace Usa