The WR CMB CR STD 5/16 12P IMP from Field Tool Supply is a versatile combination wrench designed for professional use. With a size of 5/16 inches and a 12-point design, it provides excellent grip and torque for various applications. Made from high-quality chrome vanadium steel, this wrench offers durability and resistance to wear. Its standard design ensures compatibility with a wide range of fasteners, making it an essential tool for mechanics and technicians. This wrench meets industry standards, ensuring reliability and performance in demanding environments.