Clamps materials up to 24" thick (60cm); 11/2" reach (38mm) Auto-adjust technology automatically adjusts to material thickness Easy-to-regulate clamping force using a simple thumbscrew Extra-large clamp faces spread clamping pressure evenly Ergonomic padded grips prevent hand fatigue Highly durable, all-metal construction #KREG #แคลมป์บาร์ #AUTO MAX #24" #KSC24