Snap-On SIM1123 Deep Impact Flank Drive Socket

Snap-On SIM1123 Deep Impact Flank Drive Socket is a 1" drive, six-point deep socket engineered for heavy-duty fasteners. The SIM1123 model uses Snap-On’s Flank Drive geometry to grip fasteners on the flats, reducing rounding and improving torque transfer in impact applications. With a 3-1/2" overall depth, it reaches deep-set fasteners and provides extended reach in crowded engine bays or suspension assemblies. This deep impact socket is designed for use with standard 1" drive impact tools and is part of Snap-On’s Flank Drive lineup, built to withstand the demands of repetitive impact cycles. The 6-point configuration supports larger hex fasteners and is intended for SAE-size applications where secure, precise engagement is critical. Constructed as a true deep socket, its geometry helps ensure proper alignment and seating on fasteners before torque is applied, making it a reliable choice for installers working with long bolts or recessed fastener locations. As a Snap-On product, SIM1123 carries the brand’s reputation for precision machining and consistent fit across compatible tools, helping technicians complete assemblies more efficiently and with fewer slip events.