The Milwaukee lineman's 4-in-1 ratcheting insulated box wrench is 1000 V UL classified. Durable forged steel construction provides users with longer tool life, the ratcheting wrench's ergonomic handle is designed to deliver users with comfortable use while wearing gloves and still allows for easy storage. High contrast size markings let users identify size easier. The box wrench features twelve point sockets that fit 1/2 in., 9/16 in., 5/8 in. and 3/4 in. hardware.