18-piece special set for Allen screws.

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 distortion-free, indestructible trays of injected POLYPROPYLENE. Oil and acid resistant and easy to clean. With easy-to-read and durable marking of all socket sizes!