Mitutoyo

Spline Micrometers – Series 331,111

Series 331

  • IP65 water/dust protection (Series 331).
  • The anvil and spindle have a small diameter for measuring splined shafts,slots, and keyways.
  • With Ratchet Stop for constant force.
  • With SPC output (Series 331).
  • With a standard bar except 0-25mm and 0-1” model.
  • Supplied in fitted plastic case.

Technical Data


Accuracy: Refer to the list of specifications.
Resolution*: 0.001mm or .00005″/0.001mm
Graduation**:0.01mm,.001″ or .0001″
Flatness: 0.3µm/.000012”
Parallelism:(2+R/100)µm,R=max. range (mm)
[.00008” + .00004” (L/4”)]
L = max. range (inch)
Measuring faces: Carbide tipped
Display*: LCD
Battery*: SR44 (1 pc.), 938882
Battery life*: Approx. 1.2 years under normal use
Dust/Water protection level*: IP65
*Digital models **Analog models

Function of Digital Model

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

Optional Accessories for Digital Model

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

Order NoRangeAccuracyRemarksMassGen Info
111-1150-25mm±3µmType A205gSpline (DIA).3mm
111-11625-50mm±3µmType A205gSpline (DIA).3mm
111-11750-75mm±3µmType A370g
111-11875-100mm±4µmType A500g
111-119100-125mm±4µmType A655g
111-120125-150mm±4µmType A710g
111-121150-175mm±5µmType A900g
111-122175-200mm±5µmType A1040g
111-2150-25mm±3µmType B205g
331-251-300-25mm±2µmType A330gDigital model
331-252-3025-50mm±2µmType A470gDigital model
331-253-3050-75mm±2µmType A625gDigital model
331-254-3075-100mm±3µmType A565gDigital model
331-261-300-25mm±2µmType B330gDigital model
331-26225-50mm±2µmType B470gDigital model
331-263-3050-75mm±2µmType B625gDigital model
331-264-3075-100mm±3µmType B565gDigital model

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Product Name : Spline Micrometers – Series 331,111