The Fowler High Precision 72-243-212-1 Inside Micrometer is a professional-grade instrument engineered for precise internal diameter measurements across a 2-inch to 12-inch range. This essential fowler inside micrometer provides stable and repeatable readings, making it ideal for machinists, engine builders, and quality control technicians who demand accuracy for critical automotive and industrial components.
Key Features
- Precise Internal Measurement: Accurately gauges internal diameters from 2 to 12 inches, critical for checking cylinder bores, sleeves, bushings, and counterbores during machining and assembly processes.
- Durable Construction: Features fully hardened and lapped extension rods with carbide measuring faces, alongside a hardened, ground, and lapped spindle thread, ensuring longevity in demanding shop environments.
- Clear Graduations: Microfine graduations on a satin chrome finish offer easy-to-read measurements, facilitating quick and accurate verification of dimensions.
- Fine Adjustment & Locking: A fine adjustment mechanism provides smooth operation for precise setting, while a positive locking nut secures measurements for consistent, repeatable results.
Applications
This inside micrometer is indispensable for verifying cylinder bores, liners, and main housings in a variety of gasoline and diesel engines, including those found in passenger vehicles, heavy-duty trucks, off-road equipment, and agricultural machinery. It is commonly utilized in automotive machine shops to ensure bore size, taper, and out-of-round conditions are within specifications during honing and finishing operations. Additionally, it is well-suited for general manufacturing, aerospace, and industrial maintenance settings where accurate bore gauging is essential for fixtures, tooling, pumps, and gear housings.
Specifications
- Manufacturer: Fowler High Precision
- Model: 72-243-212-1
- Type: Inside Micrometer
- Measurement Range: 2" to 12"
- Weight: 1.9 lb
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