3/8 in Drive, 21mm Hex Metric, Socket, 6 Points, Steel, Chrome, 21 mm MPN:J5221MH

Proto 6 Point Sockets are ideal for working with stubborn or damaged fasteners, as well as those made from soft materials. The TorquePlus design allows for quick and easy socket engagement, reducing slippage and minimizing fastener rounding. This results in extended fastener life and easier turning of worn, rounded, or rusted fasteners. Suitable for use in a variety of applications, including automotive, industrial, and construction projects. The sockets' 6-point design provides increased strength and durability, making them a reliable choice for professionals and DIYers alike. Their compact size and weight also make them easy to handle and store.

Top product features:

• TorquePlus design allows for quick and easy socket engagement to the fastener flats, not the corners.
• The TorquePlus configuration employs a radius-corner design, shifting contact area and stress away from the fastener corners and distributing contact stresses over a large area of the socket, minimizing slippage.
• The TorquePlus internal design minimizes fastener rounding, helps to extend fastener life, and allows the user to more easily turn worn, rounded, or rusted fasteners.

Top product applications:

• Stubborn or damaged fasteners
• Fasteners made from soft materials
• Worn, rounded, or rusted fasteners