Neiko 01333A Jeweler's Precision Screwdriver Set (7 Piece), Clear Hardened chrome vanadium shafts of the precision screwdrivers provide extra strength and great resistance to corrosion Sand blasted magnetic tip provides sharpness while the magnetic feature holds your fasteners in place while tightening or loosening 360 degree spinning end caps allow for smoother and easier driving for more control Set comes with a clear snap close case for easy storage and each screwdriver is labeled for easy access Set includes three Phillips (#00, #0, #1) and four flat (2.0,3.0, 4.0 mm) with an overall length of 50 mm making it a great assortment for a lot of uses for jewelry and watch repairs