Fowler Coaxial Indicator 52-710-025-0, 0.250 in Range, 0.0002 Accuracy

Description

Product Overview

The Fowler 52-710-025-0 Coaxial Indicator is a precision‑engineered measurement instrument designed for industrial and scientific applications where exact centering and positioning are critical. Constructed from hardened steel and featuring a 1.6‑inch diameter dial with micro‑fine black graduations on a bright yellow face, the indicator delivers a total measuring range of 0.250 inches and a readability of 0.0002 inches. The set includes three internal feelers, three external feelers, and a dedicated center‑point feeler, each equipped with a 0.125‑inch ball tip for true‑center detection at spindle speeds up to 800 RPM. The robust case protects the delicate components during transport and storage, while the ergonomic design ensures comfortable handling in tight workshop environments.

Usage

This coaxial indicator excels in a variety of machining and inspection scenarios. It is ideal for aligning shafts, locating bore centers, and verifying the concentricity of rotating parts in CNC machines, lathes, and milling centers. The indicator’s ability to remain stationary while the spindle rotates allows operators to monitor real‑time deviations without interrupting the machining process. Additionally, the feelers can be employed on manual equipment, such as drill presses and hand‑held tools, where precise positioning of workpieces is required. The instrument’s compact size and lightweight construction make it suitable for field service technicians who need reliable measurement capabilities on the shop floor or in remote maintenance locations.

Why Choose Us

Choosing the Fowler Coaxial Indicator means selecting a product backed by decades of metrology expertise and a reputation for durability. Each unit undergoes rigorous quality control testing to ensure the dial remains stable and the feelers retain their calibrated accuracy over thousands of cycles. The included protective case, calibrated accessories, and clear user documentation provide a complete solution out of the box, reducing downtime and simplifying setup. Fowler’s commitment to customer support includes technical assistance, calibration services, and a responsive warranty program, giving users confidence that their investment will perform reliably throughout its service life.

Key Features

• Ultra‑fine 0.0002″ readability for high‑precision centering tasks.
• Three internal and three external feelers with 0.125″ ball tips for true‑center detection.
• Stationary dial design allows continuous monitoring while the spindle rotates.
• Durable hardened‑steel construction and protective case for long‑term field use.
• Comprehensive after‑sales support, including calibration and technical assistance.

FAQ

What types of machines can I use this indicator on?

The indicator is compatible with any machine that provides a rotating spindle, including CNC mills, lathes, drill presses, and manual turning centers. Its coaxial design ensures accurate readings regardless of spindle speed.

How do I maintain the feelers for optimal performance?

Keep the feeler tips clean and free of debris. Periodically inspect the ball tips for wear and replace any damaged feelers using the spare parts kit supplied by Fowler. Calibration should be performed annually or after any impact event.

Can the indicator be used for non‑metallic workpieces?

Yes, the indicator can measure the position of plastic, composite, and ceramic components, provided the feeler tips are gently applied to avoid surface damage. The high readability ensures accurate results across material types.

What is the warranty coverage for this product?

Fowler offers a one‑year limited warranty covering manufacturing defects. The warranty includes repair or replacement of faulty components and access to technical support for troubleshooting and calibration guidance.