Digital micrometer head
164, 350 series
MITUTOYO
* The Digimatic Micrometer Heads.
■Non-rotating device
The non-rotating device prevents radial torsion on the
workpiece surface so that workpiece wear and deformation
are minimized.
■Technical Data
Accuracy and stem diameter:
Order No. Accuracy* Stem dia.
350-251-10 350-351-10 ±2μm/±.0001" 10mm/.375"
350-252-10 350-352-10 ±2μm/±.0001" 10mm/.375"
350-253-10 350-353-10 ±2μm/±.0001" 10mm/.375"
350-254-10 350-354-10 ±2μm/±.0001" 10mm/.375"
350-271-10 -- ±2μm 12mm**
350-272-20 -- ±2μm 12mm
350-273-10 -- ±2μm 12mm**
350-274-20 -- ±2μm 12mm
350-281-10 350-381-10 ±2μm/±.0001" 12mm/.5"
350-282-10 350-382-10 ±2μm/±.0001" 12mm/.5"
350-283-10 350-383-10 ±2μm/±.0001" 12mm/.5"
350-284-10 350-384-10 ±2μm/±.0001" 12mm/.5"
350-261-10 350-361-10 ±2μm/±.0001" 12mm/.5"
164-163 164-164 ±3μm/±.00015" 18mm/.71"
-- 350-357-10 ±.0001" .375"
*Excluding quantizing error **with 18mm stem bush
Resolution: 0.001mm or .00005"/0.001mm
Display: LCD
Battery: SR44 (1 pc. / 2 pcs.*), 938882
Battery life: Approx. 1, 2 years under normal use
(1.8 years: 164-163 and 164-164)
Dust/Water protection level: IP65 (series 350**)
* 164-163 and 164-164
** 350-271-10, 350-273-10, 350-261-10, 350-381-10, 350-382-10,
350-383-10, 350-384-10, 350-361-10, 350-281-10, 350-282-10,
350-283-10, 350-284-10
■Functions
Preset (2-point prest*), Zero-setting, Automatic power
ON/OFF*, Power ON/OFF**, Data hold, Data output, +/-
conversion**, inch/mm conversion (inch/mm models)
Function lock*
*Only for 350 series **Only for 164 series
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