Our Drive Pin Punches have been machined to exacting tolerances for accurate driving without damaging the pin or hole. The punch ends are ground square to sit flush on the top of the pin. Made of hardened tool steel with a knurled body, Generals Drive Pin Punches can either be held by hand or with our Punch and Chisel holder. This five piece set features extra long 3 1/2 in. shafts for reaching deeply recessed pins. Precision engineered and machined for an exact fit. For reaching deeply recessed drive pins. Includes five punches: 1/8, 3/16, 1/4, 5/16 and 3/8 in. Shafts are 3 1/2 inches in length; overall tool length is 8 in. Made of hardened tool steel with knurled body. Packaged in a vinyl case. Conforms to government specifications GGG P 831E.