Taps, Drills and Dies - Inch and Metric by Robert Porter

Taps, Drills and Dies - Inch and Metric by Robert Porter
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  • Item #: BK-139

Useful information for the watch, clock and model maker and hobbyist to help you decide which screw thread, tap drill, or die to use. Topics include: Screw thread standardization; length engagement; type of taps and their markings; the use of pitch gages; determining screw thread sizes; thread size and corresponding tap drill charts; how to make a special tap; number, letter and fractional drill size charts; making your own tap drills; high qualilty swiss metric thread, pitch and tap drill size charts; repair examples; German Lowenherz and British thread series charts; watch stem and crown thread charts; vintage pocket watch and Elgin thread and tap charts. 79 black and white photos and diagrams.

60 pages. 5-1/2" x 8-1/2"
Soft Cover 

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Price $14.00

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