[Heavy duty F Clamps] The clamps for welding own the adjustable jaw opening up to 12 inch /300 mm, 3.15inch / 80mm throat depth, and 1/3inch thickness spindle for durability and comfort use. [Strong Clamping Force] 2PCS F-Clamps have strong clamping pressure of up to 600 kg/ 1320LBS. Our welding f clamps are not easy to loose which will help you quickly welding and woodworking. [Premium Quality] Made of solid 45# carbon steel, and an anti-rust plating , these 12-inch F clamps are sturdy, and to use. Its flat and round swivel pad will easy hold flat surfaces, different angled edges and small bars. [Reasonable Design]Built-in swivel pads and utility clamps,the bar style clamps provide you with even clamping force while protecting your work pieces. Its smooth and fast sliding adjustable handle allows you to adjust the supporting range effectively. [Widely Used ] F-Style welding clamps specially designed to provide evenly clamping force and meet needs of steel welding, woodworking, and steel working. Any queries about our strong hand clamps, please to us. size: 300 x 80mm Material: steel colour: silvery Package Contents: 2 x f clamp Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.