The Proto 577-7206M is a 3/8-inch drive, 6mm impact socket featuring a 6-point design that delivers superior torque transfer and reduces the risk of rounding fastener heads. Built to handle the demands of professional mechanics and industrial applications, this impact socket is engineered for use with pneumatic and electric impact wrenches.
Part of Proto's 577 System, this socket is ideal for MRO, automotive, and heavy-duty maintenance tasks requiring reliable metric fastener engagement. Its robust construction ensures long service life in high-stress environments.