Watchmaker driver steel 45, it is not easy to oxidise, it does not rust, it is stable and has a long service life. Metal handle with surfaces, the screwdrivers fit comfortably in the hand and do not slip. Watchmaker screwdriver set with demagnetiser, simple and practical, colour coded caps for quick recognition of the size Flat screwdriver size include 0.6mm, 0.8mm, 1.0mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm and 2.0mm; Cross-head screwdriver sizes include 1.2mm, 1.4mm, 1.6mm, 1.8mm and 2.0mm. Screwdriver set for all small work in the watch, and other electronics., Weight: 0.42769678828 pounds, Manufacturer: OOLA.DETAL