Starrett Ball Tip for Micrometers These Ball Tips for Micrometers are a great accessory for all Micrometers with a 0.250" diameter spindle. Just slip the rubber boot over the flat spindle, and now you have a Micrometer with a Spherical Face, allowing you to measure spherical or rounded surface materials. Features include... Fits 0.250" Diameter Spindles 0.200" Diameter Ball 1 pc included
