Inside Digital Caliper 6 Inch - Fowler High Precision

The Fowler High Precision 74-554-730 Inside Digital Caliper offers automotive technicians and industrial professionals a precise and dependable solution for critical internal measurements. Engineered for demanding workshop environments, this professional-grade tool ensures accuracy and repeatability for internal diameter and internal groove applications, providing confidence in verifying vital internal dimensions.

Key Features

• Dedicated Internal Measurement Design: Features optimized jaws and geometry purpose-built specifically for inside diameter and internal groove measurement, offering superior accuracy compared to repurposed outside calipers.
• 0–6" / 0–150 mm Measurement Range: Accommodates a broad spectrum of common internal dimensions found in engine blocks, brake components, transmission housings, and various industrial assemblies.
• Clear Digital Readout: A large, easy-to-read LCD display minimizes potential reading errors and accelerates inspection and setup processes, enhancing workflow efficiency. This display offers a resolution of 0.01" / 0.1 mm / 1/64ths.
• Robust Professional Construction: Manufactured with a durable housing for daily shop use, ensuring stable performance and longevity under challenging working conditions and temperature fluctuations.
• Intuitive Operation: Simple controls allow for quick zeroing and seamless unit conversion between inches, millimeters, and fractions, streamlining workflow at the bench or on the production line.
• Spring-Loaded with Locking Nut: This design provides stable and accurate measurements by ensuring consistent contact and allowing users to secure the reading.

Applications

This inside digital caliper is ideal for internal measurement tasks where precision and consistency are paramount in automotive and industrial settings. Common automotive applications include checking cylinder bores, verifying brake master cylinder and wheel cylinder IDs, and inspecting transmission and differential housings. In manufacturing and machining, it is well-suited for confirming valve guides, bearing seats, bushings, and other critical internal diameters during initial setup, in-process inspection, and final quality control. It is also used for measuring internal grooves for snap rings or seals.

Specifications

• Manufacturer: Fowler High Precision
• Model: 74-554-730
• Measurement Range: 0–6 in / 0–150 mm
• Measurement Type: Inside / Internal
• Resolution: 0.01" / 0.1 mm / 1/64ths
• Accuracy: 0.01" / 0.3 mm / 1/64ths
• Battery: CR2032
• Weight: 0.39 lb
• Overall Dimensions: 8.4 x 4.5 x 1.25 in