For Direct measurements upto 50 mm in steps of 0.01 mm (0.001cm) on a large micrometer head

(b) The reading microscope screw & drum head, and the stage are carried on a sturdy base so that these are normally inclined at an angle of 45 degree. The stage 7.5 x 15cm is fitted with spring clips.
(c) The micrometers slide moves along a lifeline stainless steel scale and the movements are read directly on a largely drum head to are specially aged & normalized tonsure uniformly accurate performance with passage of time. Total range of movement 50 mms
(D) The reading microscope is provided with rack and pinion focusing. Optics highly achromatic.(e) An extra support leg is attached to the base to enable the whole instrument to be brought to horizontal reading position.(f) Sub stage mirror in gimbals for reflecting light.