1/2 DRIVE 12MM METRIC 6 POINT UNIVERSAL IMPACT SOCKET CUP12M6B | eBaydiy Tools

True pinless design eliminates the retaining ring improving access
Four points of contact on the socket end
Distributes higher torque and spreads the stress more evenly on the fastener
High visibility laser marking helps technicians identify sockets quicker
Socket Rail – Color coded, unique spring-loaded ball allows easy socket removal and replacement