MITUTOYO SERIES 422 BLADE MICROMETER – NON-ROTATING SPINDLE TYPE

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▪The anvil and spindle are blade-shaped for measuring the groove diameter of shafts, keyways, and other hard-to-reach features.
▪Carbide-tipped measuring faces are also available
▪Non-rotating spindle type.
▪Equipped with Ratchet Stop for constant measuring force.

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MITUTOYO SERIES 422 BLADE MICROMETER – NON-ROTATING SPINDLE TYPE

Product Overview

The Mitutoyo Series 422 Non-Rotating Spindle Type Blade Micrometer features an anvil and spindle shaped into blades, specifically designed for measuring the groove diameter of shafts, keyways, and other hard-to-reach areas. Equipped with a non-rotating spindle mechanism and a Ratchet Stop for constant measuring force, this Digimatic instrument provides high-precision digital readouts with an absolute sensor system. Carbide-tipped measuring faces are available on select models.

Key Features & Capabilities

Blade-Shaped Measuring Faces: Anvil and spindle feature thin blades to measure groove diameters of shafts, keyways, and restricted areas.
Non-Rotating Spindle: Prevents torque on the workpiece during measurement.
Constant Measuring Force: Equipped with a Ratchet Stop.
Sensor Technology: Features electromagnetic rotary sensor (for standard Digimatic models) or electrostatic capacity absolute sensor (for Quickmike models).
Coolant Proof / IP65 Rating: Dust-tight and protected against water jets (for Quickmike and standard Digimatic models as specified).
Vertical Deviation Guarantee: Deviation of 0.15 mm or less is guaranteed between the anvil and spindle in the vertical direction (for measuring range 0 to 25 mm).

Technical Specifications

Metric (Standard Digimatic)

Code No.	Range (mm)	Resolution (mm)	Maximum Permissible Error JMPE (µm)	Parallelism (µm)	Remark
422-230-30	0 - 25	0.001	±3	3	Type A
422-231-30	25 - 50	0.001	±3	3	Type A
422-232-30	50 - 75	0.001	±4	4	Type A
422-233-30	75 - 100	0.001	±4	4	Type A
422-260-30	0 - 25	0.001	±3	3	Type B
422-261-30	25 - 50	0.001	±3	3	Type B
422-270-30	0 - 25	0.001	±3	3	Type C
422-271-30	0 - 25	0.001	±3	3	Type D

Inch / Metric (Standard Digimatic)

Code No.	Range (in)	Resolution	Maximum Permissible Error JMPE (in)	Parallelism (in)	Remark
422-330-30	0 - 1	0.00005 in / 0.001 mm	±0.00015	0.00015	Type A
422-331-30	1 - 2	0.00005 in / 0.001 mm	±0.00015	0.00015	Type A
422-332-30	2 - 3	0.00005 in / 0.001 mm	±0.0002	0.0002	Type A
422-333-30	3 - 4	0.00005 in / 0.001 mm	±0.0002	0.0002	Type A
422-360-30	0 - 1	0.00005 in / 0.001 mm	±0.00015	0.00015	Type B
422-361-30	1 - 2	0.00005 in / 0.001 mm	±0.00015	0.00015	Type B
422-370-30	0 - 1	0.00005 in / 0.001 mm	±0.00015	0.00015	Type C
422-371-30	0 - 1	0.00005 in / 0.001 mm	±0.00015	0.00015	Type D

Metric Quickmike Type

Code No.	Range (mm)	Resolution (mm)	Maximum Permissible Error JMPE (µm)	Parallelism (µm)	Remark
422-411-20	0 - 30	0.001	±3	3	Type A
422-412-20	25 - 55	0.001	±3	3	Type A

Inch / Metric Quickmike Type

Code No.	Range (in)	Resolution	Maximum Permissible Error JMPE (in)	Parallelism (in)	Remark
422-421-20	0 - 1.2	0.00005 in / 0.001 mm	±0.00015	0.00015	Type A
422-422-20	1 - 2.2	0.00005 in / 0.001 mm	±0.00015	0.00015	Type A

General Technical Data & Power Supply

Power Source: SR44 battery (1 pc.), part no. 938882 included as standard for operational checks.
Battery Life:
Approx. 2.4 years under normal use (for models 422-2XX, 3XX)
Approx. 5 years under normal use (for Quickmike models 422-4XX)
Position Detection Method:
Electromagnetic rotary sensor (for 422-2XX, 3XX)
Electrostatic capacity absolute sensor (for 422-4XX)
Standard Accessories: Setting standard (1 pc., except for measuring range 0 to 25 mm / 0 to 30 mm / 0 to 1 in / 0 to 1.2 in models), Spanner (301336, 1 pc. for 422-2XX, 3XX models).
Note: Heat shield provided with Digimatic models as standard. Models are not water-proof (except where IP65 coolant-proof ratings apply to specific configurations).