Bessey GZ50-10K All-steel screw clamp GZ 500/100 Tommy Bar, - 20 % more clamping force per spindle rotation with optimised rail profile. Maximum security with linear transfer of force at the sliding arm. Clamping force up to 6,000 N. Fixed jaw and sliding arm are constructed of tempered steel for resilient clamping. Tommy bar with rounded ends for simple transfer of force when clamping. Pressure plates can be replaced by hand à no need for tools (from 80 mm width) Smooth-running spindle, The surface-coated spindle with acme thread is particularly smooth-running, and does not bind. For even smoother, more efficient work. Maximum stability, The optimised profile shape guarantees greater clamping force build-up in the shortest time, while maintaining greater stability and safety. The fixed clamp forged from a single piece with moulded pressure plate is hardened, tempered and galvanised, making it highly durable and torsion-resistant.