Product Description
The MITUTOYO 223-125 is a mechanical disc micrometer designed for precision measurement of grooves, keyways, and recessed features where a standard flat anvil cannot reach. It covers a measurement range of 0 to 1 inch with a graduation of 0.001 inch and an accuracy of 0.0002 inch. The 20 mm disc diameter and 0.70 mm disc edge thickness allow access to narrow or recessed surfaces. A ratchet stop thimble delivers consistent measuring force, reducing operator-to-operator variation. The satin chrome finish resists glare and light corrosion. This instrument is suited for quality control, toolroom work, and precision layout tasks performed by machinists, toolmakers, and metrology technicians.
The 223-125 is used in manufacturing, machine shops, and inspection environments where standard outside micrometers cannot reach groove floors or thin disc-shaped features. It is rated IP65 for water and dust resistance, making it suitable for use in production floor environments with coolant exposure. The rotating spindle design accommodates a range of workpiece orientations. The unit ships with a plastic carrying case and one SR44 battery.
Key Features
- 0 to 1 inch measurement range with 0.001 inch graduation and 0.0002 inch accuracy
- 20 mm disc diameter with 0.70 mm disc edge thickness for access to grooves and recessed features
- Ratchet stop thimble for repeatable, consistent measuring force
- Rotating spindle accommodates varied workpiece orientations
- IP65-rated for resistance to water and dust in production environments
- TUV certified; satin chrome finish reduces glare
Compatibility
Designed as an OEM-style outside micrometer replacement or supplement for precision measurement applications requiring disc-type anvil and spindle contact geometry.
Installation Notes
Calibration and zeroing should be performed before use following standard metrology practice. Handle the measuring faces with care to avoid nicking or contaminating the disc surfaces. Store in the included plastic case when not in use to protect the instrument from impact and environmental exposure. Cleaning with a lint-free cloth before and after use will help maintain measurement accuracy.
Technical Specifications
- Measurement Range: 0 to 1 inch
- Graduation: 0.001 inch
- Resolution: 0.00005 inch / 0.001 mm
- Accuracy: 0.0002 inch
- Operation Type: Mechanical
- Thimble Type: Ratchet Stop
- Disc Diameter: 20 mm
- Disc Edge Thickness: 0.70 mm
- Spindle Material: Steel
- Anvil Material: Steel
- Finish: Satin Chrome
- Water Resistance Rating: IP65
- Certifications: TUV Certified
- Battery: 1 x SR44 (included)
- Includes: Plastic Case
- Weight: 1.33 pounds
Standard Information
- Brand: MITUTOYO
- Manufacturer Part Number: 223-125
