Fowler 0-1" Digit Counter Ball-Anvil Micrometer with ball anvil and spindle 52-244-301-1

Ball Anvil Micrometers measure dimensions from the inside of holes to outside edges with the accuracy and convenience of easy to read numbers on a digital counter. The spherical anvil or spindle contacts the inside curved surface at a single point for accurate gaging to .0001". • Microfine graduations on satin chrome.  Digital counter reads to .001"; sleeve reads to .0001". • Hammertone blue baked enamel frame furnished with deluxe heat insulator. • No. 52-244-201-1 spindle hardened and precision ground with a carbide tipped measuring face • No. 52-244-301-1 anvil is hardened and precision ground • Spindle thread hardened, ground & lapped • Ratchet stop thimble on all models • Positive locking nut on spindle • Meets or exceeds Federal accuracy specs. • Includes wrench for quick, easy zero adjustment on sleeve and a case