Accessories snap directly in the nose of the Trak-It ToolTM with the patented clip, and are held in place while shooting with just one hand. Washers are used in a broad range of applications to quickly secure thin straps, metal fixings, metal lath and waterproofing membrane materials to reinforce and prevent fixture pull-over. They are recommended to be used with High Performance pins. Compatible with all Trak-ItTM tools.