Must Have Tool: When performing line or coolant maintenance, use the Hose Clamp-Off Pliers to quickly and accurately clamp or break hoses without damaging the hose to repair . The ratcheting pliers are automatic locking, saving you more time and freeing up your hands. Tips: these pliers are mainly designed to be used on flexible, compressible types of hoses, don't use them on any type of metal hoses or hoses which would be distorted or bent by the clamping action Wide Application: These pinch-off pliers are suitable for automotive hose lines, radiator lines, lines, heater and coolant lines etc. The small 8-inch hose pinch off plier is used for small hoses and tight areas, such as hose for small engine, water hose under kitchen sink etc; the medium 10-inch and large 12-inch hose pinch plier is used for radiator, vacuum lines and some slightly larger hoses etc, Manufacturer: Akfldms