Snap-on Tools - "These, my friend, are locking wobble extensions. You pull back the collar and put your socket on, and the socket stays put. You know those bolts you have to
12 pc 3/8" Drive 6-Point Metric Flank Drive® Shallow Impact Swivel Socket Set | 212IPFM | Snap-on Store
207IPLFM SNAP ON 7 pc 3/8″ Drive 6-Point Metric F/Drive Deep Impact Swivel Skts £220.00 - PicClick UK
NEW Snap on Impact swivel socket set 3/8 drive 10-18MM for sale online | eBay