Jet 710144-12" Steel Pipe Wrench-Heavy Duty Replacement Parts Couplers have deep knurled socket

Jet 710144 12" Steel Pipe Wrench Heavy Duty Replacement Parts Couplers have deep knurled socket Couplers have deep knurled socket sleeve and a 4 ball "Positive Locking" mechanism Couplers and plugs made from zinc plated steel to prevent rust from a moisture rich environment To identify this plug Single hammer (rocking dog) impact mechanism for good impact power with reduced vibration Rugged die cast aluminum body Compact ergonomic design for increased comfort Insulating and impact absorbing rubber handle grip 4 positive throttle settings Easy push button forward and reverse change mechanism Oil port for easy maintenance