Mitutoyo 468-979 Digimatic Holtest
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Mitutoyo 468-979 Digimatic Holtest for 2-4" bore measurement with 0.001mm resolution, TiN-coated contacts, LCD display, and three-point gauge system.
Product details
| Model | 468-979 |
| Manufacturer | Mitutoyo |
| Category | Gage Blocks & Standards |
| Availability | Made to order |
Description
Overview
The Mitutoyo 468-979 Digimatic Holtest is a precision digital bore gauge designed for accurate measurement of internal diameters from 2 to 4 inches. Using a three-point measuring method, it contacts the bore surface at multiple points simultaneously to deliver consistent and repeatable readings. This instrument combines rugged durability with digital convenience, making it suitable for quality control, precision machining, and manufacturing environments.
Key Features
- Measurement range: 2 to 4 inches (50.8 to 101.6 mm)
- Resolution: 0.001 mm or 0.00005 inches
- Three-point measuring method for accurate and repeatable bore contact
- TiN-coated measuring points for superior durability and impact resistance
- Large LCD display for easy reading and data recording
- Ratchet stop mechanism for consistent measuring force
- Functions: Presetting, Zero/ABS, Power On/Off, Data hold, Data output, Error alarm, Battery replacement alarm
- Two SR44 batteries with approximately 8 months of typical use
- Includes setting rings for verification and calibration
Applications
- Quality control and precision bore verification
- Internal diameter measurement in machining and metalworking
- Engine block and cylinder bore inspection
- Bearing bore and seal measurement
- Manufacturing and production quality assurance
Included Accessories
- Fitted plastic carrying case
- Setting rings: 2.5 inch and 3.5 inch diameter
- Two SR44 replacement batteries
Specifications
| Measurement Range | 2 to 4 inches (50.8 to 101.6 mm) |
| Individual Ranges | 2-2.5 in, 2.5-3 in, 3-3.5 in, 3.5-4 in |
| Resolution | 0.001 mm or 0.00005 inches |
| Measuring Method | Three-point contact |
| Contact Points | TiN-coated |
| Display | LCD |
| Ratchet Stop | Yes, for constant measuring force |
| Battery | SR44 (2 pcs) |
| Battery Life | Approximately 8 months under normal use |
| Functions | Presetting, Zero/ABS, Power On/Off, Data hold, Data output, Error alarm, Battery replacement alarm |
| Setting Rings Included | 2.5 inch and 3.5 inch diameter |
| Case | Fitted plastic carrying case |
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Mitutoyo 468-979 Digimatic Holtest
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