577-1212ASD Features: -TorqueplusTM fastening system drives off fastener body, more easily removing damaged fasteners. -Reduces risk of fastener rounding. -Applies up to 15% more torque to fastener. -Unique arc design increases surface contact by 400%. Use: -Combination Wrench. Size: -3/8". Quantity: -Single. Number of Points: -12. Measurement Type: -SAE. Product Type: -Wrenches. Dimensions: Overall Product Weight: -0.1 Pounds.
From the Manufacturer
Stanley Proto combination wrenches are engineered to be more efficient and stronger than ever. Proto engineers continually work to create wrenches that grip tighter and let users apply more torque without fear of fastener damage. All are coated or plated to be durable and corrosion resistant.