OTC's Brass Punch Set includes two large, brass, non-sparking punches Ideal for use near precision parts or in locations where sparks from ferrous metal could be hazardous Includes an 8 inch punch with a 5/8 inch hex shaft that tapers to a round, 3/8 inch size 10 inch straight punch with a large, 3/4 inch diameter shaft with chamfered ends Perfect for fuel pump lock rings, differential components, and more