Taps, Drills, & Dies, Inch & Metric: Useful Information for the Watch/Clock Maker and Model Maker by Robert Porter

This new guide contains over 65 pictures and many line drawings to show you just about everything the watch/clock maker, model maker, and hobbyist needs to know about inch and metric taps, drills, & dies to complete a project. You are shown step-by-step how to make your own custom-sized drills, how to make a special tap, and how to make a bushing and screw to repair a chronograph watch. Adjustable dies are explained as well. A comprehensive list of drill sizes, as well as quick-reference inch and metric thread charts with suggested tap drill sizes, and other useful information about watch stem and crown threads, pocket watch pendant taps, and much more is included in this handy bench book.