【Rust-Proof and Durable Material】The hose clamp pliers are made of high-quality carbon steel forgings and spray-coated with a double rust-proof finish, offering strong corrosion resistance and durability, easily surviving wet and oily environments. 【Four Sizes Precisely Fitted】The hose pinch off pliers set includes four sizes: 3/8", 1/2", 1", and 1-3/4", fully covering various pipe diameters, including fuel, coolant, and vacuum lines. Choose the right size to meet your specific needs. 【Zero-Damage Hose Protection】The fuel line clamp features a U-shaped jaw and uniform pressure design, distributing the force applied during clamping to prevent dents or cracks, stopping the flow of liquid or gas while protecting the hose's integrity. 【Easy Adjustment with a Knob】The hose clamp tool's knob-based fine-tuning system allows for precise, one-handed control of clamping force—from completely shutting off flow to fine adjustments—for stable operation in tight spaces. 【Applicable Occasions】The hose clamp pliers' secure clamping design is suitable for automotive repair (fuel/cooling systems), industrial equipment, and household plumbing. The non-quick-release mechanism provides precise control, a leak-proof seal, and a banishment of oil spills., Weight: 0.992080179 pounds, Manufacturer: LIBRATON