Mitutoyo Hole Gauge 504-155-124 Loaded Plunger with Knurled Clamp

Description

Product Overview

The Mitutoyo 504-155-124 hole gauge is a precision instrument designed for measuring internal diameters and groove widths. Constructed from hardened steel, it offers long‑term durability and resistance to wear. The spring‑loaded plunger expands within the bore, providing a clear, repeatable indication of size, while the knurled clamp secures the gauge firmly in place during measurement. Dimensions are 7.2 x 3.1 x 0.6 inches and it weighs only 2.4 ounces, making it easy to handle.

Usage

This gauge is ideal for machinists, quality‑control engineers, and maintenance technicians who need quick, reliable internal measurements. Use it on shafts, bearings, and machined holes in automotive, aerospace, and general manufacturing settings. The spring‑loaded mechanism allows for fast readings without removing the gauge, reducing downtime on the shop floor.

Why Choose Us

Mitutoyo is a trusted name in metrology, known for rigorous calibration standards and consistent accuracy. Each gauge undergoes strict quality checks and comes with a calibration certificate. Our customer support team provides technical assistance and a one‑year warranty, ensuring you get the most out of your investment.

Key Features

• Spring‑loaded plunger delivers consistent expansion for repeatable measurements.
• Knurled clamp ensures a secure grip, preventing movement during use.
• Compact size and lightweight design for easy transport and storage.
• Hardened steel construction resists wear in harsh industrial environments.
• Dedicated support line and one‑year warranty for peace of mind.

FAQ

What size range can this gauge measure?

The gauge is calibrated for internal diameters from 0.5 mm up to 30 mm, covering most standard machining applications.

How do I maintain the spring‑loaded plunger?

Keep the plunger clean and free of debris. Periodically apply a light oil to the moving parts to maintain smooth operation.

Is calibration required?

While the gauge is calibrated from the factory, we recommend annual verification against a known standard to ensure continued accuracy.

Can I use this gauge on hardened materials?

Yes, the hardened steel tip is designed to withstand contact with hardened surfaces without deformation.

What is included in the package?

The package contains the hole gauge, a protective case, and a calibration certificate.