Looking for a wrench that is designed for confined areas where ordinary pipe wrenches won’t fit? No need to look any further; this 12” chain wrench by Crescent allows use in tight spaces, is excellent for pipe fittings, and has the ability to be used in either direction. Its Patented design features concave-teeth for improved gripping and will easily sharpen if needed. Made to be strong and durable, this wrench is constructed with a strong I-beam handle and is chrome plated to resist rust.Jaw opening/capacity: 4 in./102 mm.U.S. Patent No. 3304817.