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Set Includes: 12 point ASD Combination Wrenches - J1212ASD - 3/8" 12 Pt., J1214ASD - 7/16" 12 Pt., J1216ASD - 1/2" 12 Pt., J1218ASD - 9/16" 12 Pt., J1220ASD - 5/8" 12 Pt., J1222ASD - 11/16" 12 Pt., J1224ASD - 3/4" 12 Pt., , J5320-50 Socket Spark Plug 5/8", 12 Point 1/2" Drive sockets - J5414 - 7/16", J5416 - 1/2", J5418 - 9/16", J5420 - 5/8", J5422 - 11/16", J5424 - 3/4", J5426 - 13/16", J5428 - 7/8", J5430 - 15/16", J5432 - 1", J5434 - 1-1/16", J5436 - 1-1/8", and J5440 - 1-1/4", J5449 Ratchet 1/2" Dr., J5461 Extension 1/2" Dr. 5", J5463 Extension 1/2" Dr. 10", J5467 Hinge Handle 1/2" Dr. 15-3/4", J5470A Socket 1/2" Drive Universal Joint, J263SG Pliers, Tongue and Groove 9-1/2" w/Grip, and J5496 Metal Tool Box. All Proto hand sockets incorporate the TorquePlus wrenching system. The TorquePlus design is a high performance drive configuration which allows for quick and easy socket engagement to the fastener flats, not the corners. The configuration employs a radius-corner design, shifting contact area and stresses over a large area of the socket, minimizing slippage. The internal design of the TorquePlus minimizes fastener rounding, helps to extend fastener life, and allows the user to more easily turn worn, rounded, or rusted fasteners. Stanley Proto open end 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. The open end features the Proto Anti-Slip Design to provent slipage, while the Box end incorporates the TorquePlus wrenching system allowing upto 15% more force to be applied to the fastener. No ribs or serrations to damage fasteners.