Proto® J52124 SAE Socket Bit Set, 13 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

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 13 in Socket Bar with (13) Socket Clips

Warranty: Lifetime

Standard/Approvals: ASME B107.1, AS954E S3.8.1

Proto® Socket Bit Set | Measurement System Imperial | 3/8 in Drive | 13 Piece | Full Polished | STA-BLKHAW