Beadsmith 1.8mm Punch Plier W/Gauge Guard With 1 Extra Pin. These sturdy pliers punch a 1.8mm hole in metal sheet stock up to 22 gauge. They create a smooth, clean hole without barbs or rough uneven edges. The patented gauge guard keeps the area around the hole free of unsightly indentations, for a more professional appearance. Single leaf spring hinge and ergonomic soft plastic grips help reduce hand fatigue. Comes with 1 extra pin and 2 screws, to replace dulled punch pin (small Phillips head screwdriver not included.) Back of product package shows basic instructions. Create easy, fast, professional-quality pendant or component holes, and step up your design potential today!