supply of micrometer range & magnetic stand , outside micrometer range 150-175 mm, least count 0.001 mm, digital mitutoyo or der no 293-252-30 or equavalant of starret / mahr / tesa or similar make, along with master gauge for calibration.calibration certificate from nabl accredited agency(validity at least 1 year). [ warranty period: 30 months after the date of delivery ] ] , supply of magnetic stand similar to mitutoyo model 7010s10 & dial indicator similar to mituto yo model no.- 2109s-10. gratduation : 0.001mm, range: 0-1 mm, least count: 0.001 mm. along with nabl calibration certificate(validity at least 1 year).makers- baker/mitutoyo or similar [ warranty period: 12 mo nths after the date of delivery ] ]