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The 4-4K27=1 1/16 Momento 27mm Square Impact Socket, 1/2” Square Drive is designed for professional impact fastening applications involving square fasteners, plugs, and other compatible square profiles. Built for use with 1/2” square drive impact tools, this Momento square impact socket provides a dedicated solution when a standard hex socket is not the correct fit for the job.

As part of Momento’s 1/2” square impact socket range, this socket helps technicians, mechanics, and industrial users match the correct socket geometry to the fastener. Square impact sockets are useful for maintenance, repair, assembly, and industrial service work where reliable engagement with square-profile fasteners is required.

The 4-4K27=1 1/16 Momento 27mm Square Impact Socket, 1/2” Square Drive is ideal for adding a specialty socket option to a 1/2” impact socket set. Its square socket profile supports proper fit on compatible fasteners, while the 1/2” square drive connection allows use with matching impact wrenches, extensions, and drive accessories.

Choose Momento 1/2” square impact sockets when your application requires a square fastener profile rather than a standard hex, long, magnetic, thin-wall, Torx, 12-Point, Hex Key, or Surface Drive socket. The 4-4K27=1 1/16 Momento 27mm Square Impact Socket, 1/2” Square Drive offers a practical specialty socket option within Momento’s impact tooling lineup.