Bosch 1/4" Hex to 1/4" Square Drive Adapter (2608551109)

The Impact Control Adapter for Sockets is highly robust, and is specially designed to withstand the high power of impact drivers. Its S2 Modified Steel and optimised heat-treatment process provide the socket with extra endurance for high performance making it extremely sturdy for long-lasting work. The adapter features an external square drive enabling it to hold sockets with an internal square drive, which would normally only fit impact driver. This product is intended for heavy-duty screw-driving applications such as plant installations or heavy industrial work. 

Part Number	Shank	Length mm	External square drive end, inch
2 608 551 109	1/4 external square	50	1/4