It is a double screw system. It tightens evenly and parallel with high pressure twice as fast. When tightened, the threads are hidden by a protective cover, protecting the screws from welding debris and other contaminants. The movable handle makes it easy to tighten and grip. Arm brake system. Prevents sudden slipping. The bar is made from strong hot-rolled steel. High strength ductile cast iron arm with excellent ductility.
Clamp for woodworking and...
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