These black anodized steel contact points are tapered to a rounded end which has a radius (SR) of approximately .025". The angle of the taper changes depending on the length of the point. At its widest point, the base, it will measure 5 mm. Although designed for Mitutoyo dial indicators, these will fit any other brand of indicator. Just be sure to select the correct thread size. American made.
NUTS & BOLTS
Easy reading for anyone curious about the origins of mechanical engineering.
STARRETT Digital Calipers
Easy to use. Large digital display. Fine adjustment thumb wheel.
STARRETT
An American Manufacturing Tradition