A popular series of machines that, although of a design that dates back to the 1930s, are still found in use today - the writer receiving regular requests for their instruction manuals.  Around 1933, Drummond came to a licensing agreement with the Fellows Company of the United States that led to the Drummond No. 2 and No. 3 gear shapers, these being subsequently improved as the types 2A and 3A - which models, according to an experienced user, were an improvement over their Fellows competition. Eventually to be sold in four series as the 2A, 2B, 2C and 3A, the machines could generate both large and very small gears in spur, internal, cluster, blind-end,  middle stem as well as being employed for splining and the generation of special bores and exterior profiles. If available with a helical guide and the requisite matching helical cutters, helical gears could also be produced..
It was possible to set the gear planers up for one-off jobs, or have them fitted with automatic work handling equipment when batches of machines could be set up as linked lines for entirely automatic, high-volume production. The catalogue extracts below show the 2A, 2B and 2C and their various capabilities, is continued on Page 2 with the 3A shown on Page 3