In addition to their range of "Swiss-Auto" lathes, the Petermann Company also manufactured a range of other machine tools for use in the horological industry, including automatic pinion and wheel cutting machines in Sizes 1 and2. One of these, and similar to those make by other makers of high-precision machine tools such as Sloan & Chace, Cataract, the American Watch Tool Co., Stark and Waltham,  was the Petermann No.2, this being listed by the makers as the "Automatic Pinion and Small Spur Gear Cutting Machine" and "Automatic Pinion and Wheel Cutting machine" (wheel being the engineers term for what the layman often refers to as a "cog" or gear). Intended to produce, one at a time, small gears for use it pocket watches, clocks, instruments, typewriters and similar small mechanical devices it was a machine of very high precision and capable of producing parts used in the most accurate of timepieces, chronometers and other fine instruments. Click on any of the first four images below for a high-resolution download.