The Groz Professional Series Bar Clamps are built for superior clamping force and long-lasting durability, making them ideal for demanding woodworking and metalworking applications. Featuring a robust 1-3/8″ × 5/16″ (35 × 8 mm) thick bar, these clamps resist bending or deformation under high-pressure jobs, ensuring reliable performance under load. Heavy-duty cast iron jaws provide outstanding holding power and long service life, while protective plastic caps prevent scratches or damage to the workpiece. An ergonomic handle and quick-slide mechanism enable fast, effortless adjustments, maximizing productivity and efficiency on the job.