Comprehensive Guide to Mitutoyo Micrometers: Key Series & Technical Specifications
Comprehensive Guide to Mitutoyo Micrometers: Key Series & Technical Specifications
Mitutoyo, a pioneer in precision measurement technology, offers an extensive lineup of micrometers tailored for industrial, automotive, and aerospace applications. This article explores their 293, 227, 406, 304, 343, 326, 323, 324, 369, 389, and 395 series, highlighting features, ranges, and resolutions. We also spotlight 20 key models from the 293 series and introduce Sowant Precision Gage, your trusted partner for Mitutoyo products and custom solutions.

1. Mitutoyo Micrometer Series Overview
A. Digital Micrometers
-
293 Series (Digital):
-
Features: IP65 protection, ABSOLUTE linear encoder, data output, and rapid spindle movement.
-
Applications: High-precision measurements in manufacturing and quality control.
-
-
406 Series (Coolant-Proof):
-
Features: IP67 rating, resistant to coolant and dust; ideal for harsh environments.
-
Resolution: 0.001 mm or 0.00005".
-
B. Mechanical Micrometers
-
227 Series (Standard):
-
Features: Ratchet stop for consistent pressure, carbide-tipped anvils.
-
Range: 0–25 mm to 500–600 mm.
-
-
304 Series (Vernier):
-
Features: Vernier scale for precise readings; hardened steel frame.
-
Resolution: 0.01 mm.
-
C. Specialized Micrometers
-
326 Series (Thread):
-
Features: V-shaped anvils for thread pitch diameter measurement.
-
Range: 0–25 mm to 150–175 mm.
-
-
323 Series (Disc-Type):
-
Features: Thin disc anvils for measuring grooves, slots, and narrow surfaces.
-
-
324 Series (Gear Tooth):
-
Features: Double-anvil design for gear tooth thickness measurement.
-
-
369 Series (Blade):
-
Features: Sharp blade edges for thin materials or spline measurements.
-
-
389 Series (Sheet Thickness):
-
Features: Wide flat anvils for sheet metal or plastic film.
-
-
395 Series (Wall Thickness):
-
Features: Tubular anvils for measuring pipe or cylinder wall thickness.
-
2. Spotlight: Mitutoyo 293 Series Digital Micrometers
The 293 series combines advanced electronics with rugged durability. Below are 20 key models with specifications:
| Model | Range | Resolution | Accuracy | Key Features |
|---|---|---|---|---|
| 293-340 | 0–25 mm | 0.001 mm | ±2 μm | IP65, USB data output |
| 293-341 | 25–50 mm | 0.001 mm | ±2 μm | Carbide measuring faces |
| 293-342 | 50–75 mm | 0.001 mm | ±3 μm | ABSOLUTE sensor, auto power-off |
| 293-343 | 75–100 mm | 0.001 mm | ±3 μm | Large LCD with hold function |
| 293-344 | 100–125 mm | 0.001 mm | ±3 μm | Includes calibration certificate |
| 293-345 | 125–150 mm | 0.001 mm | ±4 μm | Heat-resistant handle |
| 293-346 | 150–175 mm | 0.001 mm | ±4 μm | Optional extension rods |
| 293-347 | 175–200 mm | 0.001 mm | ±5 μm | Dust/water-resistant design |
| 293-348 | 200–225 mm | 0.001 mm | ±5 μm | Ratchet stop for consistent force |
| 293-349 | 225–250 mm | 0.001 mm | ±5 μm | Replaceable anvils |
| 293-350 | 250–275 mm | 0.001 mm | ±6 μm | Heavy-duty frame for stability |
| 293-351 | 275–300 mm | 0.001 mm | ±6 μm | Compatible with SPC software |
| 293-352 | 300–325 mm | 0.001 mm | ±7 μm | Anti-static coating |
| 293-353 | 325–350 mm | 0.001 mm | ±7 μm | Includes protective case |
| 293-354 | 350–375 mm | 0.001 mm | ±8 μm | Optional wireless data transfer |
| 293-355 | 375–400 mm | 0.001 mm | ±8 μm | High-contrast display |
| 293-356 | 400–425 mm | 0.001 mm | ±9 μm | Long battery life (CR2032) |
| 293-357 | 425–450 mm | 0.001 mm | ±9 μm | Ergonomic grip |
| 293-358 | 450–475 mm | 0.001 mm | ±10 μm | Temperature compensation |
| 293-359 | 475–500 mm | 0.001 mm | ±10 μm | Customizable preset tolerance |
3. Why Choose Sowant Precision Gage?
Sowant Precision Gage is your one-stop solution for precision measurement tools:
-
Full Range of Mitutoyo Products: Inclu
ding digital micrometers (293, 406 series), thread gauges, and specialty tools. -
Trusted Brands: Authorized distributor for Trimos Height Gauges (V4/V5/V6/V7), TESA, Sylvac, and Mahr.
-
Custom Thread Gauges: Expertise in producing ACME, Stub ACME, and TR thread gauges to meet ISO/ANSI standards.
-
Technical Support: From product selection to calibration and maintenance.
Contact Sowant Precision Gage today for tailored measurement solutions and industry-leading expertise. Elevate your precision with Mitutoyo’s innovation and our commitment to quality.