Posted by Mike Prida on September 13, 2007 at 18:11:19:
When using a new hobb (shank type) to cut a spur gear what is the purpose of the lead angle that is etched on the tool? Is it for sharpening , is it the angle you put in the machine head as if you were cutting a worm gear or is it the angle you put in for a helical? doesnt that angle come off of the print?