Thread MillsExternal and Internal? Or can one mill do it all?
Feb 04, 2013#0183;#32;I am just trying to get into thread milling. Looking at solid carbide multi flute mills that are for a specifc size/pitch. Ie 1/2quot;20TPI. By far most sources have separate mills for internal and external threads. However, I found one at Advent Tool that they list for both OD and ID threads. I called them Friday to ask them what the deal is.