This page contains the P.P. Thornton chart for gear and cutter calculations. It provides every
formula needed for gear cutting. This chart is invaluable for determining sizes of both gears
and cutters. You can print this page from your web browser or download the PDF to print and
keep. If you do not have Adobe® Acrobat installed on your
computer, please download it at




More Technical Information on this Site!
Technical Information Links:

Cycloidal Wheel & Pinion Cutters

You are Here: Profile Dimensions For Clocks & Watch Wheel & Pinion Cutters

Escape Wheel & Ratchet Cutters &Ratchet & Musical Box Cutters


Home / Chains / Contact Us / Cutters and Custom Verges /
Popular Clock Keys Page 1 /
Popular Clock Keys Page 2 / Pulleys / Tools