Fowler's Digit-Disc Micrometers feature extra large diameter discs which easily enter hard to reach places such as narrow grooves, slots and recesses. • Hammertone blue baked enamel finished frame is tapered for hard to get at places • Anvil and spindle are hardened and precision ground with microlap finish on measuring faces • Positive locking nut on the spindle • Quick and easy zero adjustment on sleeve • Ratchet thimble • The disc type anvil and spindle simplifies measuring the thickness of difficult, closely spaced sections, ribs, keys, fins, cutting edges on forming tools, chordal thickness of gear teeth, etc. • Meets or exceeds Federal accuracy specs. • Sizes over 1" include standards • Includes wrench and case *Image shown for representational purposes only
