Duragun� is a pneumatic tool designed to be used with the garages current air system. Manufactured from a high quality resin based plastic the Duragun� has been the CV boot tool of choice for many years. It�s robust design and high quality material ensures it can handle the daily rigors of garage life and should be used solely for the installation of stretchy CV boots, such as our Duraboot� and Universal ranges. Unlike other pneumatic CV boot tools that are available the Duragun� has a built in patented safety mechanism which ensures the operators safety. Due to the ingenious design of the piston it is possible to expand the boot on the Duragun� and then disconnect it from the airline. The boot will remain fully expanded until the release button is pressed. This means there is no need to drag the airline around the workshop.