Hard Hat Tether, Used With 3M Hard Hats and Caps, Hat Clips ORS NASCO non metallic or composite material Cutting rods non metallic or composite material Cutting rods can sustain the burn with and without constant electrical power once ignited One piece patented construction maintains the balance necessary to sustain the exothermic reaction harnesses and flush cuts soft wire up to 14AWG Offers double the weight capacity A 4 lb load rating allows you to confidently add hearing protection or a face shield to your hard hat Simple installation and removal Spring compression ambidextrous design makes it easy to use with either hand Grips harder on more materials