The Groz Self-Locking Pliers are manufactured from Chrome Molybdenum steel for enhanced strength and durability. These pliers redefine excellence in your toolkit. With jaws induction-hardened to 45-60 HRC and featuring a curved design, they deliver a powerful grip on nut and bolt heads, ensuring formidable tightening in high-torque applications. The Groz touch is evident in the spring-loaded release mechanism, offering controlled release for confined spaces. A wide adjustment screw, coupled with a rolled thread spindle, ensures smooth pressure adjustments on the workpiece. The non-pinch, rubberized non-slip grip guarantees fatigue-free use, showcasing The Groz commitment to precision and comfort.