Shall 6-Inch Steel Bar Clamps Set, 4-Pack Medium-Duty, Diy And Crafts ??Basic Size?- Contains 4 packs of 6" steel bar clamps with a 2-1/2" throat depth and a maximum load limit: 600 lbs. Maximum opening capacity: 6 in ??Powerful Clamping Force?- With a clamping force of up to 600 lbs, this medium-duty steel bar clamp is capable of securely holding many workpieces. ??Robust Build Quality?- 1/4" thicker hardened steel construction provides this F-clamp with greater impact resistance for larger and more consistent pressure on many wood and metal workpieces ??Quick-Adjust Design?- Quick-release latches allow you to adjust and lock the wood clamps quickly and easily. ??Anti-Slip Mechanism?- Dual-sided precision grooves are machined on both sides of the bars to provide excellent grip and prevent clamp arm from abnormal sliding ??Ergonomic Rubber Handle?- The unique anti-slip textured grip makes users more comfortable and relaxed when twisting the woodworking clamp. Ideal for a variety of woodworking, metalworking and professional users ??Soft Anti-slip Jaw Pads?- Equipped with soft plastic removable jaws pads to distribute the pressure evenly and reduce the damage to the contact surface of the workpiece ??Customer Service?- SHALL provides you with a 1-year warranty and will solve any problems encountered in the process for you. Pls feel free to contact us, we will provide you with 24-hour service.