Mitutoyo 368-918 Holtest Set – Series 368-Three Point/Two-Point Internal Micrometer / Complete Unit Inch Set .8-2in / Set Info: Ind Range .8-1 in, 1-1.2 in, 1.2-1.6 in, 1.6-2 in – Rings 1 in DIA, 1.6 in DIA
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Description
The Mitutoyo 368-918 Holtest Set – Series 368 is a comprehensive set of internal micrometers used for accurately measuring the inside dimensions of cylindrical objects. This set includes both three point and two-point micrometers, allowing for versatility in measuring different sizes. The set has a range from .8 to 2 inches and comes with four rings with diameters of 1 inch and 1.6 inches. These rings enable precise measurements within specific ranges, such as .8-1 inch, 1-1.2 inches, 1.2-1.6 inches, and 1.6-2 inches. By using the Mitutoyo 368-918 Holtest Set, users can confidently and easily measure internal dimensions with precision.
Specifications
- Model Number: 368-918
- Type: Three-Point/Two-Point Internal Micrometer Set
- Measuring Range:
- 0.8 – 1.0 inch
- 1.0 – 1.2 inch
- 1.2 – 1.6 inch
- 1.6 – 2.0 inch
- Included Rings:
- 1 inch diameter setting ring
- 1.6 inch diameter setting ring
- Resolution: 0.0002 inch (high precision for internal measurements)
- Accuracy: ± 0.00015 inch (depending on the range)
- Measuring Method: Mechanical, three-point contact system for precise and accurate bore measurements
- Contact Points: Carbide-tipped contact points for wear resistance and durability
- Included Micrometers: Four individual micrometers to cover the specified range
- Calibration Rings: Two setting rings included for accurate calibration of micrometers
- Display: Analog dial with clear graduation markings
- Material: Hardened steel body for durability and long-term accuracy
- Storage Case: Supplied in a protective fitted storage case for safe keeping and easy transportation
- Applications: Ideal for precision internal bore measurements, such as checking the diameter of holes or bores in mechanical parts.
Laboratory Calibration
Micro Precision operates 36 laboratories globally providing reliable localized support
- Certified metrologists staffing laboratories in North America, Central America, South America, Europe, Asia, and the Middle East
- Comprehensive scopes of accreditation to meet a broad range of customer needs
- Expedited calibration services available
- Pickup and delivery services available
- Environmentally controlled facilities to ensure high quality and accurate calibrations and measurements.
Laboratory Calibration
Micro Precision operates 36 laboratories globally providing reliable localized support
- Certified metrologists staffing laboratories in North America, Central America, South America, Europe, Asia, and the Middle East
- Comprehensive scopes of accreditation to meet a broad range of customer needs
- Expedited calibration services available
- Pickup and delivery services available
- Environmentally controlled facilities to ensure high quality and accurate calibrations and measurements.
Quality Certified Test Equipment Repair Services
When a piece of equipment fails you have the option to repair or replace that item. Oftentimes repair is an economical and efficient solution. Micro Precision’s repair offering provides advantages to our customers:
- Cost effective; often less than OEM
- Efficient; often much better turn-time than the OEM
- Flexibility; willingness to work with customers to meet their needs
- Warranted repairs
- Ability to service many obsolete instruments
Quality Certified Test Equipment Repair Services
When a piece of equipment fails you have the option to repair or replace that item. Oftentimes repair is an economical and efficient solution. Micro Precision’s repair offering provides advantages to our customers:
- Cost effective; often less than OEM
- Efficient; often much better turn-time than the OEM
- Flexibility; willingness to work with customers to meet their needs
- Warranted repairs
- Ability to service many obsolete instruments
Cost Effective Test Equipment Options
From the leasing of specialized electronic equipment for a specific task, to the purchase of physical and dimensional tools, we offer leasing services as well as used test equipment sales. We also locate hard-to-find electronics, and provide flexible options to meet ever-changing equipment needs.
Cost Effective Test Equipment Options
From the leasing of specialized electronic equipment for a specific task, to the purchase of physical and dimensional tools, we offer leasing services as well as used test equipment sales. We also locate hard-to-find electronics, and provide flexible options to meet ever-changing equipment needs.
Our Capabilities
Micro Precision can perform instrument calibration services on equipment from variety of applications for specific industries and lines of business. If you have a calibration need that is not listed in this area, please contact us.
Electrical
Micro Precision accredited electrical calibration lab services with multimeter, multifunction calibrator, oscilloscope, and power supply capabilities.
Optical
Micro Precision accredited optical, light, and fiber optic calibration lab services.
Thermodynamics & Chemical
Micro Precision accredited thermodynamic & chemical calibration lab services with temperature, humidity, life science, and pharma capabilities.
RF - Microwave
Micro Precision accredited RF & microwave calibration lab services.
Mechanical & Dimensional
Micro Precision accredited mechanical and dimensional calibration lab services with pressure, torque, force, flow, velocity, and aircraft jack load capabilities.
Laboratory Standards
Calibration laboratory standards are critical for your organization’s most accurate measurements.
Semiconductor Calibration
Micro Precision utilizes state-of-the-art technology to analyze semiconductor wafer thickness and step height.


