General description Our CSPARKV Knee Clamp Tightening Hand Tool is designed for quick and effortless holding of various materials such as sheet metal and circuit boards. Ideal for applications in carpentry, machine operation, welding, and electronic equipment assembly, this tool offers a strong and reliable grip. Technical specifications Holding capacity: 90 kg / 198 lb Size: 14.2 x 3.7 x 5.6 cm / 5.6 x 1.46 x 2.2 in Weight: 130 g / 0.29 lbs Handle opening angle: 60° Rod opening angle: 85° Usage Quickly holds sheet metal, circuit boards, and other materials Suitable for carpentry, machine operation, welding, and electronic equipment assembly Other information Made of cold rolled carbon steel with a zinc plated coating for corrosion and wear resistance Red rubber handle for hand protection Adjustable hold down bars with pressure screw for easy mounting Unique self-locking design prevents accidental opening Practical tool set includes 4 pieces for stable clamping force