supply of digimatic holtest - three- point internal micrometersdigimatic holtest - three- point internal micrometers, digimatic holtest - three- point internal micrometers, mitutoyo series: 468 -179, size 225- 250 mm, resolution 0.001, maximum permissible error j mpe: + / - 6 micrometer, measuring face: titanium-coated hardened & steel taper: tungsten carbide, ip65 with large lcd readout display, required functions: abs / inc ( inc zero ) , auto power off after 20 min non use, low voltage alarm, function lock , hold, 2 x preset. along with calibration certificate from nabl / govt. approved & 02 set additional battery sr44 ( 2 pcs. ) make : mitutoyo, , brown &sharp , tesa or similar. supplier must be submit proof of purchase from oem or oem authorized dealer at the time of supply. warranty period of item should be minimum six month from the date of supply.