FEATURES 16mm and 5/8" capacity 45 degree inclination Starrett 13mm(1/2") and 25mm (1") outside micrometers, 2 and 2A 2" micrometers and 210, 220, 483, 485, 569 special purpose micrometers SPECIFICATIONS Fits Starrett Series: Starrett 1/2" (13mm) and 1" (25mm) outside micrometers, 2 and 2A 2" micrometers and 210, 220, 483, 485, 569 special purpose micrometers