5pcs Impact Bolt Extractor Stud Nut Twist Socket Removal Set 8 10 13 17 19mm. Integrated Concentric roller bearings stud extractors. Sizes: 1/2" Drive 21mm Spanner or Ratchet 6mm, 8mm, 10mm and 12mm. It can also be used with 21mm spanners with the hex drives on the top of the socket.
