With the Facom DM.91 hose clamp plier, you reliably shut off flexible lines up to 45 mm without hassle. Its threaded screw mechanism lets you apply gradual, controlled clamping pressure to seal radiator hoses, fuel lines, and air ducts securely without damaging the rubber. This saves valuable time during cooling system maintenance by eliminating the need to completely drain and bleed the fluid circuit. Built with a durable all-metal construction, this tool withstands tough workshop demands and locks firmly in place so it will not slip or release while you work.