Second center punch taking direction from the group. in Slitters, Punches, Drifts, etc Posted December 22, 2019 Center punch number two from a large Allen key. Changes made from first to reflect group feedback. Note domed striking end. Cold center-punch so shorter length. Tip brought to non-magnetic to an inch down the shank. Quenched in warm canola. Quick grind to reveal clean metal. Shank heated to glowing and temper brought to tip with tip reaching pale fading to dark wheat.