Proto® J52201 SAE Socket Bit Set, 10 Pieces, 3/8 in Drive, Full Polished

• Design is a high performance drive configuration which allows for quick and easy socket engagement to the fastener flats, not the corners
• 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
• Internal design minimizes fastener rounding, helps to extend fastener life and allows the user to more easily turn worn, rounded, or rusted fasteners
• Long durability is provided by employing a pin system to connect the central block to the driving end and open end

For use on stubborn or damaged fasteners and also on fasteners made from soft materials

Includes: 1/4 in, 5/16 in, 3/8 in, 7/16 in, 1/2 in, 9/16 in, 5/8 in, 11/16 in, 3/4 in, 13/16 in, 7/8 in, 15/16 in, 1 in Sockets and 9 in Socket Bar with (10) Socket Clips

Warranty: Lifetime

Standard/Approvals: ASME B107.5M

Proto® Socket Bit Set | Measurement System Imperial | 3/8 in Drive | 10 Piece | Full Polished | STA-BLKHAW