A machine shop needs at minimum: vernier caliper (0–150 mm digital), outside micrometer set (0–75 mm), height gauge, dial test indicator, surface plate, and thread pitch gauges. Multi Trade Combines on AT Road, Guwahati is an authorised Mitutoyo dealer — stocking the full range of precision measuring instruments for machine shops across Northeast India.
| Tool | What it measures | Typical range | Mitutoyo series |
|---|---|
| Digital vernier caliper | OD, ID, depth, step dimensions | 0–150 mm or 0–200 mm | 500-series digital |
| Outside micrometer | Shaft diameters, thickness, round stock | 0–25, 25–50, 50–75 mm (set) | 293-series |
| Depth micrometer | Slot depth, recess depth, step height | 0–25 mm, 0–50 mm | 129-series |
| Height gauge | Height from reference surface, scribe lines | 0–300 mm or 0–600 mm | 192-series digital |
| Dial test indicator (DTI) | Runout, concentricity, surface flatness | ±0.5 mm or ±1 mm travel | 513-series |
| Surface plate (granite) | Reference flat for measurement setups | 400×400 mm to 900×600 mm | Grade A, B, or C |
| Thread pitch gauge | Identify thread pitch (metric and UN) | M1–M68 pitch range | Starrett or Mitutoyo |
| Bore gauge / telescoping gauge | Internal bore diameter | 6–150 mm | Read with outside micrometer |
| Feeler gauge | Clearances, gap checking | 0.05–1.0 mm blades | Standard grade |
| Square (engineer's try square) | 90° perpendicularity check | 100 mm, 150 mm blade | Starrett or equivalent |
For a machine shop starting up or upgrading its measurement capability in Guwahati or anywhere in the Northeast:
For the full range, see the measuring tools catalogue.
In the Guwahati and Northeast India market, several lower-priced instrument brands (Chinese imports, unbranded) are available through hardware shops. For a machine shop producing components to drawing tolerances, the difference between a Mitutoyo instrument and an unbranded import is not cosmetic:
A digital vernier caliper (Mitutoyo 500-series) reads to 0.01 mm directly on an LCD display — eliminating scale reading errors and speeding up inspection. A conventional vernier scale caliper reads to 0.02 mm and requires the operator to correctly read the vernier graduation — a skill that takes practice and is error-prone under workshop conditions. For machine shop use where multiple operators handle the caliper and measurements are recorded at speed, a digital caliper is strongly recommended.
The standard recommendation is annual calibration for instruments used in routine quality control. Instruments used for formal dimensional certification or export quality work should be calibrated every 6 months, or after any incident of dropping or impact. Guwahati has NABL-accredited calibration labs. Mitutoyo instruments come with factory inspection certificates — re-calibrate annually to maintain traceability. The counter team at MTC can advise on calibration service contacts in Guwahati.
Yes — Multi Trade Combines, AT Road, Guwahati is an authorised Mitutoyo dealer for Northeast India. We stock Mitutoyo digital vernier calipers, outside micrometers, depth micrometers, height gauges, dial gauges and dial test indicators. Mitutoyo is the global benchmark for precision measuring instruments — its accuracy, durability and spare parts availability make it the correct choice for machine shops that need reliable measurements over many years.