C3 Worms & Wheels
The C3 was provided with a standard set of three hardened steel worms Just like it's smaller cousin the B2. They comprised of 1 start. 5 start, and 10 start, presumably the most useful sizes. The screw cutting charts provided by Pittler only mention these three sizes. The Pittler catalogues suggest that other sizes could be made to order from the Pittler factory. For some reason this C3 has seven worms. 1, 5,6,7,8,9 and 10 start.
The set of 20 wheels comprise teeth of 20,24,28,32,36,40,44,52,56,60,64,68,72,76,80,96 in five start and 24,40,72,96 in one start