Premium all-steel bar clamps from BESSEY deliver uncompromising quality, patented features, durability and real-world productivity make it a must-have tool in todays modern workshop. With clamping forces ranging from 700 lbs up to 8500 lbs virtually all possible applications are covered. A patented rail profile offers greater stability, enhanced clamping force and 20% more clamping force per spindle turn for quicker set-up times. U-shaped sliding arm transfers clamping force evenly across the surface.