Specialised micrometers, developed for measuring sunk keys, the keyway width and Woodruff keys with a measuring range of up to 55mm.
Technical data
error limits according DIN 863
non-rotating (floating) spindle
ratchet
measuring range 25 mm
readings 0,01 mm
spindle thread pitch 0,5 mm
thimble-Ø 19 mm
parallax free reading
parallax free reading
delivery in wooden case