|
|
Starrett Speed Indicator and Starrett Tools Catalog No. 18. This speed indicator used for measuring rotational speed of machinery is the improved model No. 106. The instrument is nickel plated with a rosewood handle to prevent heating the fingers when run at high speed. All working parts enclosed like a watch. A detailed description appears in the attached ‘Starrett Tools Catalog No. 18’ page 157. This catalog is the 1918 edition with 232 pages and detailed engravings of over 200 precision instruments, calipers, micrometers, protractors, gages, saws, levels etc. In addition, several conversion tables and index. |
|
