The NIBCO Press System® pressing tool assures a consistent, reliable, safe and clean connection with no flame, solder or flux. The lightweight, ergonomically designed press tool features a pressing head that smoothly rotates 350 degrees making it ideal for working in tight spaces. As a safety feature an interruptible crimp cycle will instantly stop the forward motion of the rollers when the trigger is released. A manual retract switch allows the user to return the rollers to the starting position in case of error or emergency. When properly crimped, a unique ''''N'''' witness mark is clearly visible. Pressing tools, jaws and chain sets are an integral part of ensuring a reliable, permanent connection between copper piping and NIBCO Press System® fittings and valves. Use only pressing tools, jaws and chain sets that have been tested and approved for use with NIBCO Press System® fittings and valves. Please refer to NIBCO technical data sheets and catalogs for engineering and installation information. NIBCO Press System® applies the proven performance of press technology to NIBCO valves and fittings – the most specified flow control products in the industry. The NIBCO® Press System® features a full range of precision engineered copper and copper alloy fittings, commercial valves, accessories, pressing tools, jaws and chains.