We have had a large amount of 1/16" pin punches broken lately by heavy handed techs. I have tried to get them to use a starter punch first, but they don't listen. We are currently buying the Starret brand punches by the dozen. Any suggestions on a tougher punch? We have tried the replaceable pin punches from Brownells BROWNELLS GUNSMITH REPLACEABLE PIN PUNCH SET | Brownells in the hopes that these would hold up better. It seems that they can break anything we give them.