Features:
- The ball attachments are hardened steel balls with .200” and .250” diameters which are placed on the .250” and .315” diameter anvils, respectively, by rubber caps.
- With these attachments, regular micrometers can measure cylindrical wall thickness, but, .200” or .250” must be subtracted from the readings.
- Other attachments shown here are either .500” or 10mm in length.
- The added amount must be subtracted from the reading.
