Extra Long Pin Punches – Heavy Duty [No. 256P] The extra Long Pin Punches are useful for all applications where added leverage is required. Manufactured from high quality carbon steel accurately hardened and tempered so that the Pin will withstand continuous use and the striking end will not splinter. These are induction hardened to ensure consistent hardness and a special tempering process prevents the head from fracturing. Diameter of Pin: 1/4 inch (6mm) Stock Size: 3/8 inch (10mm) Overall Length: 8 inch (200mm)