General description Our knee grip clamp set includes 4 pieces designed for quick and effortless holding of various materials such as sheet metal and circuit boards. These clamps are ideal for applications in carpentry, machine operation, welding, and electronic equipment assembly. Technical specifications Holding capacity: approx. 90 kg (198 lb) Dimensions: 14.2 x 3.7 x 5.6 cm (5.6 x 1.2 in) Weight: 130 g (0.29 lbs) Handle opening angle: 60° Opening angle rod: 85° Material: Cold rolled carbon steel with zinc coating Usage Quick release for efficient operation Adjustable pressure screw for customizable clamping force Red rubber handle for hand protection during use Self-locking design to prevent accidental opening