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.

Brand: Infinity
Measurement: Metric
Type: Stud Extractor
Number of Pieces: 4
Manufacturer Part Number: 4pcSTUD
Set or Single Item: Set
Drive: Manual
Size:: 6mm, 8mm , 10mm 12mm