2 Pcs 8.8 Inch Chain Wrench, Chain Vise Grip with 19 Inch Chain, Carbon Steel Chain Clamp Holds Up to 6" Diameter Pipes, Suitable for Pipeline and Car Repair - Amazon.com
MacWork 9 Inch Locking Chain Clamp — Pliers Locking Grip Wrench,Locking Pliers with Chrome Plated Surface Classic Trigger Easy to Operate (19 in. chain clamps any shape up to 6 in. diameter) - Amazon.com
Strong Hand Tools - VAL-PFC1024 , Locking Chain Pliers, Removable 24″ Chain, Holds Up To 6.5" Diameter Pipes, Unique Easy Open Crank Handle, Quick Release Trigger, PFC1024: Amazon.com: Tools & Home Improvement