Mitutoyo 293-343 Coolant Proof Micrometer

Mitutoyo 293-343 Coolant Proof Micrometer, IP65

Measuring Range 3-4"/76.2-101.6mm
Resolution .00005in/0.001mm
Accuracy ±.00005in

Ratchet Stop with Standard, No SPC output

Availability: In stock


Mitutoyo 293-343 Coolant Proof Micrometer, IP65

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  • Mitutoyo 293-343 Coolant Proof Micrometer, IP65

Product Description

Series 293
  • IP65 protection level, enabling use in environments exposed to cutting oil, etc*.
    *Anti-corrosion treatment is required after use.
  • Measurement data output function is available with a water-resistant connection cable.
  • Auto power ON/OFF function. • Certificate of inspection* is included.
    (50mm/2” or less range models) *It is not the type used to obtain
    calibration certificates.
  • With a standard bar except for 0-25mm/0-1" model.
  • Supplied in fitted case. Plastic case up to 150mm/6",
    Wooden box over 150mm/6"

Technical Data
Accuracy: Refer to the list of specifications.
Resolution: 0.001mm or .00005"/0.001mm
Flatness: 0.3µm/.000012”
Parallelism: 1µm/.00004” for models up to 50mm/2”
2µm/.00008” for models up to 100mm/4”
3µm/.00012” for models up to 175mm/7”
4µm/.00016” for models up to 275mm/11”
5µm/.0002” for models over 300mm/12”
Measuring faces: Carbide tipped
Display: LCD
Battery: SR44 (1 pc.), 938882
Battery life: Approx. 1.2 years under normal use
(8 months: over 100mm models)
Dust/Water protection level: IP65

Origin-set, Zero-setting, Automatic power on/off, Data hold,
Data output, inch/mm conversion
(inch/mm models)
Alarm: Low voltage, Counting value composition error

Optional Accessories
05CZA662: SPC cable with data switch (1m/40”)
05CZA663: SPC cable with data switch (2m/80”)


The Mitutoyo 293 series Coolant Proof LCD micrometer has a digital single-value LCD readout that displays in inch and metric units with resolution to 0.00005” (0.001mm) for outside diameter (OD) measurement, and a ratchet-stop mechanism that helps provide precise, repeatable measurement.

The micrometer’s electronic microprocessor can hold measurements at any position, convert to absolute value, set a temporary zero position, and return to a true zero reading. An output jack transmits Statistical Process Control (SPC) data results to a computer or external device through an interface cable (sold separately). The electronics housing has an Ingress Protection 65 (IP65) rating, which means that components are resistant to penetration by dust and debris, and resistant to penetration by liquids and coolant up to the force of a low-pressure (to 30 kilonewtons/meter-squared) water jet.. The spindle and anvil have flat measuring faces and are carbide-tipped for wear resistance. A spindle lock helps provide secure locking of the measurement position. The micrometer includes, and is powered by, a single SR44 silver oxide battery, and comes with a fitted case for storage.

Micrometers are precision measuring instruments that use a calibrated screw to measure small distances. These measurements are translated into large rotations of the screw that are then able to be read from a scale or a dial. Micrometers are typically used in manufacturing, machining, and mechanical engineering. There are three types of micrometer: outside, inside, and depth. Outside micrometers may also be called micrometer calipers, and are used to measure the length, width, or outside diameter of an object. Inside micrometers are typically used to measure interior diameter, as in a hole. Depth micrometers measure the height, or depth, of any shape that has a step, groove, or slot.

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Additional Information

SKU 293-343
UPC 603908362760
EAN 4946368429953
Weight (in lbs) 1.25
Manufacturer Mitutoyo
Gage Type Micrometer
Measuring range 3-4"/76.2-101.6mm
Resolution .00005in/0.001mm
Accuracy ±.00005in
Remarks Ratchet Stop with Standard, No SPC output