Jet 390145-10" Csg Series C-Clamp MCF This wrench features sturdy

This wrench features sturdy

control arms

brass and copper

They are made with high strength polysteel which is an extruded co-polymer fibre that yields an extremely high strength

Jet 390145-10" Csg Series C-Clamp MCF This wrench features sturdySG 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