The insulated water pump box joint pliers are constructed from premium chrome vanadium steel, ensuring high-quality material. They undergo a drop-forged process, making them entirely hardened and tempered for maximum durability. The working surfaces are induction hardened, enhancing their overall strength. The surface finish is chrome plated to meet ISO 1456:2009 standards, providing effective corrosion resistance. With heavy-duty double-component handles, these pliers offer a comfortable and secure grip. Manufactured according to both ISO 8976 and EN IEC 60900 standards, these insulated water pump box joint pliers meet industry specifications for safety and performance.