Mitutoyo, 343-353-30, Series 343 Digital Caliper Jaw Micrometer Inch/Metric, 3-4″
Features:
- Ratchet mechanism provides an audible cli-ck to ensure measurement is performed at a constant force
- Carbide-tipped measuring tips resist wear for better accuracy over time
- Twice as long battery life than previous models improves throughput and efficiency
- Digital, single-value readout LCD displays in inch and metric units for readability
- Auto power ON/OFF function saves battery life and makes for easier use
- SPC output function allows for quick and easy data management in real time
- Functions include Origin Setting, Zero/ABS Setting, Data Hold, Data Output, Function Lock, and inch/mm conversion (on inch/metric models only)
- Alarm: Low Voltage, Counting Value Composition Error
- Frame has a non-slip grip for better handling while taking measurements
- Satin chrome finish on the sleeve and laser etched scale on thimble for easier reading
- Supplied in a plastic, fitted case
The Mitutoyo digital caliper type micrometer features jaws constructed of hardened steel with carbide measuring surfaces and a hardened steel spindle to take precise measurements on recessed features. The micrometer’s ratchet stop mechanism provides a constant measuring force on the spindle to ensure accurate, repeatable measurements. The combination of the ratchet thimble and speeder enables a rapid spindle feed when measuring extensive dimensions and easy one-handed measurements.
Technical Details
| Digital/Analog: | Digital |
| Inch-Metric: | Inch/Metric |
| Range: | 3 – 4 “ |
| Digital step: | 0,00005″/0,001 mm |
| Maximum Permissible Error J MPE: | +/-0,0004″ |
| Flatness: | 0,000012″ |
| Parallelism: | 0,00016″ |
| Display: | LCD, character height 7.5 mm |
| Measuring face: | Carbide-tipped, micro-lap finish |
| Mass: | 440 g |
| Measuring spindle: | With spindle lock, ø6,35 mm, spindle pitch 0,5 mm |
| Scale: | Thimble and sleeve satin chrome finish, ø18 mm |
| Measuring force: | 1 – 6 N |
| Power supply: | 1 battery SR-44 |
| Battery life: | Approx. 2,4 years |
| Delivered: | Including box, setting standard (from 25 mm upward), key, 1 battery |
| ABS / INC (INC ZERO): | Yes |
| Auto Power OFF after 20 min. non use: | Yes |
| Function lock: | Yes |
| HOLD: | Yes |





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