Use to...

  • Run a nut along threaded bar.
  • Avoid a protruding shaft.

Buying Tips

  • Buy as a complete set.
  • Ensure square drive adaptor included.
  • Saves on buying deep sockets.
  • Saves on buying ratchet ring spanners.

Safety Tips


This drive system allows the shaft to pass through the centre of the socket. This solves the occasional problem of a lengthy protruding shaft and even allows you to ratchet a nut along a threaded bar. This also means you don't need to buy a duplicate set of deep sockets (which might not be deep enough anyway). These are physically identical to Ratchet Ring Spanners, so you won't need to waste cash on those either.