Deep throat G-Clamp frame made from malleable SG iron for added strength. The deep cut Acme threads allow for smooth and fast movement. The broad swivel shoe adjusts to the correct angle to apply even pressure and the clamp has a powder coat to protect from corrosion. Ideal for brazing, soldering and where clamping is required well in from the edge of the workpiece. Capacity: 85mm (3.1/4"). Throat Depth: 200mm (8").