For 1/4" square drive (6.3mm) and tightening torques up to 25Nm:
Sizes 2 - 6mm.
For 1/2" square drive (12.5mm) and tightening torques from 25 - 210Nm:
Sizes 6 - 14mm (short version 55mm) and sizes 5 - 12mm (long version 100mm).
See photo for full contents.
Sturdy, welded steel box, powder coated for durability. With strong moulded plastic insert for the secure placement of each item. The table for the bolt Ø with the related tightening torques and socket sizes are printed on the inside of the lid.