The Bessey GZ all-steel screw clamp with tommy bar is a heavy-duty clamping tool designed for woodworking, metalworking, and construction applications where reliable holding power is essential. The optimized profile shape delivers maximum clamping force with minimal effort, while the tommy bar provides superior leverage and control. Ideal for electricians, carpenters, fabricators, and workshop professionals who require precision clamping for panel assembly, welding prep, and repair work.