Unique combination: front and side locking function, penetrating joint, push-button adjustment, very slim pliers that work in tight spaces, with a narrow swivel range for quick screwing. The biting front gripping tooth features robust teeth and a high leverage at the tip of the pliers. It offers large front and side locking capacities for diameters and wrench sizes from 4 to 22 mm, ensuring reliable frontal gripping of flat workpieces through a three-point system. It is designed for gripping, tightening, and loosening screws with worn heads and drives. The five-stage adjustable sliding joint with push-button adjustment allows for precise adjustment of the gripping width. The clamping protection reduces the risk of pinched fingers. This tool is durable and robust due to its stable penetrating pliers joint, forged from chrome vanadium electric steel, oil-hardened, and equipped with additionally induction-hardened teeth at about 61 HRC.