View Full Version : Millrite Mystery Taper

05-17-2006, 10:57 PM
I recently acquired a Powermatic Millrite vertical mill (vintage 1976) whose taper is a mystery to me.

According to ...


"The quill - which could be ordered with various internal tapers including a Brown & Sharpe No. 9 (standard), B & S No. 10, R-8, 30 International and No. 2 or 3 Morse - was fitted with fine down feed as standard with the option of a quick-action rack feed for drilling purposes."

Well this Millrite is none of these.

It appears to be a Cat 30 taper that has been shrunk down...a "20" perhaps? The bottom part of the holder has a triangular portion that fits into the spindle where a nut then threads on.

Anyone have an idea what this might be?



05-18-2006, 03:54 AM
Quick change type,perhaps? does it have a drawbar, could it be a R-8 th Q/C conversion?