Section R. 408.13835 - Chisels, punches, star drills, drift pins, and wedgesRule 3835.
(1) A chisel, punch, star drill, drift pin, or wedge with a metal striking end shall not be used when the end becomes mushroomed. The striking end shall be ground with a crowned radius and beveled edge.(2) The working end of a chisel, punch, star drill, drift pin, or wedge shall be maintained as designed.Mich. Admin. Code R. 408.13835