US PRO Socket Set Metric Go-thru 17 Pc 3/8 1/2 Adaptors Ratchet 7559 Go Through

Part No 7559. The Go Through profile allows fixings, studs, rods etc to pass through the socket and ratchet, eliminating the depth limit set by standard sockets. 1 x Go Through reversible ratchet. 1 x Go Through to 3/8" Drive Quick Release ratchet adaptor.

eBay