Sturdy octagonal shank with cylindrical shaft. Uniformly through hardened over the entire length. Head specially annealed to prevent splintering. Actual ⌀ 0.05 - 0.5 mm less than nominal ⌀, prevents the pin punch jamming in the hole.
Special quality, i.e. highest possible tip hardness − approx. 59 HRC − with exceptional toughness. PB Swiss 6 Piece Chrome Plated Punch Tools Set in Plastic Clip