The Crescent Self-Adjusting Pipe Wrench is commonly used for gripping and holding pipes and fasteners. The self-adjusting head features a unique angled tooth configuration for ratcheting applications and better gripping, providing fast, ratcheting action. It instantly grips and releases pipes, and other types of fasteners. Easy-to-use one-hand operation. Simply position the wrench head around material to engage, then press wrench head forward or pull up jaw to release. It has an ergonomic, slim profile that allows better access to tight areas. Fitted with a dual material grip for added comfort and durability. The wrench has a corrosion resistant black oxide finish. Ideal for most surfaces including black, galvanised, PVC and copper pipe, as well as nuts, bolts and couplings. Specification: Length: 300mm (12in)Capacity: 16-38mm (5/8-1.1/2in)