Klein #3256 10" Broad-Head Bullpin, Top diameter: 1 1/16", point: 1/4"Klein #3255 13" Broad-Head Bullpin, Top diameter: 1 1/4", point: 5/16"Forged, heat treated bull pin increases efficiency by providing a larger striking surface. Head design also reduces chance of pin slipping from the hand when aligning holes. Angled head and smooth blending of radii increase strength and reduce the danger of chipping. Below the head, the squared-off shoulders have been forged to provide a surface for applying wrench to loosen wedged bull pins. Long, even taper reduces binding and hang-up. Heat-treated for strength. Black finish for rust resistance. Now available with a tether hole on the 3256TT or 3255TT for at heights applications.