I am stuck (I think) in that I am not sure how deep to set the cutter into the gear blank. Mach. Handbook and other sources talk about “whole depth” but that seems to leave out “clearance”. Thirty-two DP gears figure from .0674 in. to .0708 in. for “whole depth” depending on my source. I have built a tailstock and mandrel for my rotary table so should be ready to cut metal soon. As per my last inquiry I plan a forty tooth and a one-hundred-twenty-seven tooth gear. The pinion to be brass and the spur to be aluminum. The aluminum should outlast me and be easier to cut!