1.3pcs carbon steel mini pliers 4 inch round nose 5 inch sharp nose 5 inch c-type pliers set 2. Pliers head carbon steel, nickel-plated surface . Pliers head carbon steel, handle Q235, overall heat treatment, excellent material, compared to the CRV pliers head, cost-effective Professional grade quality, special material stamping, folding and forging, riveting process, strong and reliable, not easy to deform. 3.Nickel-plated surface treatment to prevent rust and corrosion, durable 4. The products are used in several production repair links and auto repair, electricians and other fields, especially in welding processing and some places that need positioning. 5. Fast clamping, strong pliers adjust the clamping thickness, can be quickly clamped, quickly loosened, in the operation of the work to obtain a more rapid work results 6. Less wear and tear, clamping and workpiece contact surface is relatively flat, and basically does not occur relative displacement, so the wear and tear of the clamp on the workpiece is the smallest of all clamping tools. UsageLocking pliers set is used for small jobs that need clamping.Compact size for precise work and small projects. Plier SetIncludes a versatile selection of locking tools: 4 in. curved jaw locking pliers, 5in. mini C-clamp pliers,5in. long nose locking pliers. DesignsForged and hardened steel jaws. Knurled thumbscrew adjusts jaw capacity. Precision-machined heat-treated jaws. MaterialThese pliers are made of heat-treated carbon steel with nickel plated to resist rust and corrosion.