This is the replacement jaws for SHININGEYES Pneumatic Rivet Gun.
When jaws slip on mandrel, look for broken jaws and damage or wear on jaw teeth, you need replace the jaws.
Made of high quality chrome molybdenum steel, with high frequency heat treatment the hardness is high toughnees, use stronger and more long-lasting.
Good jaws help to lengthen life of the riveting gun