Facom sldbox detection box in drive socket sets facom sldbox4 this 22 piece detection box socket set from facom contains a range of frac12in 6 point sockets as well as a ratchet with ergonomic comfort grip handle which is resistant to most chemicals and solvents in the workshop the detection box has holes in the outside which means you can check instantly if the bit required is available even when the case is closed facom sldbox4 12in detection box set 22 piece