If you're doing watch repair you need a good set of flathead screwdrivers. This kit has everything you need. This seven piece kit has color-coded screwdrivers ranging in size from .5 to 1.5  millimeters. The blades are reversible and can be changed by loosening and tightening the nut at the end of the screwdriver, extending the life of your set. The blades are tempered for durability and finely ground for any flat head screw you may come across. Pick up your new favorite set of screwdrivers at Stuller.com/tools.