Screw Driver
A well made and light screw driver is an important tool to the watchmaker. The point should be well polished and of a width nearly equal to the diameter of the screw head. One of the best forms on the market is the Waltham, shown in Fig. 278. It has four different sizes of blades which are readily adjusted to position. Screw drivers, are sometimes made in sets, the various width of blades being readily detected on the bench, as the color of the handle of each width is different.