18 Precision Screwdrivers Great For Watch, Electronic & Eyeglass Repair. This is a new set of 18 precision Slotted screwdrivers with anodized tips. Great for watch, electronic and eyeglass repair. Comes with 18 replacement tips. Set screws hold tips firmly in place. Hexagonal swivel heads prevent rolling. Each handle is color coded for size identification. Includes 2 of each tip sizes that measure approximately 0.70, 0.90, 0.83, 1, 1.19, 1.39, 1.63, 1.99 and 2.40 mm We work hard to update our descriptions and pictures of our merchandise. As part of a process of ongoing innovation by our suppliers, newer versions of the item shown may be shipped before we are able to complete an update. As a result there may be a slight variation in color and design.