We all know installing panel siding can be a tedious job. It’s big. It’s heavy. That’s all about to change. Introducing the z-clamp. The z-clamp makes installing panel siding easier, faster, and safer. It also makes one-person installation a reality. The z-clamp supports many types of panel siding for nailing. Adjusts for all siding and flashing thicknesses and 1/4 in., 3/8 in., and 1/2 in. siding to flashing gaps. Durable machined construction. General Tools & Instruments PacTool 2-1/2-in PacTo