Jet 390145-10" Csg Series C-Clamp Plumbing Tools Couplers have 4-ball "positive locking"

Couplers have 4-ball "positive locking" mechanism

The plug has 3/8" male NPT threads on one end for connecting to a female hose fitting and a coupler connection

The Small Drain Specialist

Canadian Government Specification CDA39-GP-12b and ANSI specifications WARNING: Do not use chrome sockets on electric or air impact wrenches

They are specifically designed for root and hot pass weld cleaning in pipe joining applications

Jet 390145-10" Csg Series C-Clamp Plumbing Tools Couplers have 4-ball "positive locking"SG Cast Iron clamps with Spheroidal Graphite structure produces 60,000 PSI tensile strength twice the tensile strength of ductile iron clamps. Guaranteed unbreakable in normal use Reinforced frame corners Cross handle designed to bend before the frame can be over stressed Acme threaded screw for smooth operation and even clamping pressure Black oxide coated screw and handle resists weld spatter and corrosion