Maxpower Multifunctional F Clamp, Heavy Duty Welding Clamp, 15 3/4", Woodworking ?Specifications?The max opening capacity of this steel screw clamp is up to 15 /???400mm?. The throat depth is 120mm. Quick slider combined with high strength forged handle which is more impact. ?Strong Clamping Force?The maximum clamping force of this steel F clamp is up to 550KG/1200LBS. Strong clamping force prevents vibration and slippage, you can use it with confidence. ?Various Clamping Methods Converted?The flexible and detachable sliding arms can be replaced or added by screwing the screws on the guide rail to achieve clamping or anti-support. ?Prevent Tilting?Different from the general rapid joint clamp. It has two sliding arms that can be positioned in the center of the workpiece to prevent tipping, which clamp more stable. ? High-Quality Material?The oxidized black shaft of the F clamp is wear-resistant and spatter-resistant. The quick slider is combined with a high-strength forged handle, which can be used for heavy construction work.