For hand-held, hammer struck applications Manufactured from high quality steel Induction hardened for added durability and extended life Bevelled striking edge prevents breakage and accidents during use Stamping end is hardened at 58-62 HRC and the striking end is hardened to 38-43 HRC to prevent splintering Contain 9 pieces, "0" through "9", numbers "6" and "9" are interchangeable
