David P Best: Two tap sizes required.
David P Best: Turned the collar on lathe, mounted in ER40 Hex block
David P Best: These are the drilling and tapping operations.
David P Best: Test fitting
David P Best: All Starrett here, on to Mitutoyo next
David P Best: Starrett only
David P Best: Finished ring. Half #4-48, half M1.7 x 0.35.
David P Best: Finished organizer.