[High quality] Made of high-quality steel, with heavy-duty plastic jaw pads and release trigger, which increases pressure, reduces bending and deflection, has excellent durability [One-handed operation] The new grip and trigger design provides simple one-handed operation, repeatedly pull the trigger until you reach the desired clamping strength or distance [Quick release] One-handed clamp can quickly and easily clamp or spread separate parts to work, the trigger works the same way when converted to the spread function [Size] 4 inches, clamping force is 60 kg, the maximum clamping distance can reach 3cm-10cm, come with a total of 6 to meet professional needs [Applicable] Suitable for spread or clamp parts for welding, glueing or wood work projects, is the ideal toolbox accessories for DIY woodworking and woodworking, metal processing, modeling, etc