1. Package includes: 3 pliers as a set, 8 inch pliers can compress pipes up to 18mm in diameter; 10 inch pliers can compress pipes up to 30mm in diameter; 12 inch pliers can grip pipes up to 41mm in diameter. 2. Wide application: The whole set can be used to safely flush machine drain hoses, car hose lines, radiator lines, brake lines, coolant lines, etc. without damaging them. 3. Automatic locking: No need to drain the system before maintenance; ratchet pliers allow automatic locking, saving coolant and saving time, ideal for fuel delivery or coolant service. 4. It is very easy to squeeze the cooling hoses and avoid losing coolant and its distribution throughout the engine when performing specific tasks, such as replacing valve cover gaskets. 5. The hose clamp set is made of carbon steel, which is strong and durable, wear-resistant and rust-resistant, not easy to break, and can be used safely for all hoses. 6. Specification: Product Type: Hose Compression Off Pliers; Material: Carbon Steel; Quantity: 3pcs/set; Total length: approx. 8 inches/205mm, 10 inches/245mm, 12 inches/305mm; 8 inch pliers can clamp pipes up to 18mm in diameter; 10 inch pliers can clamp pipes up to 30mm in diameter; 12 inch pliers can clamp pipes up to 41mm in diameter. 7. Packing List: 3 x Hose Crimping Pliers 8. Usage: Flat hose pliers.