HARFINGTON Joint Caliper 300mm/12 Inch Steel Tool with Chrome Finish

Description

Product Overview

The HARFINGTON joint caliper is a versatile measuring instrument designed for precision work. Featuring a firm joint inside/outside caliper with a maximum opening of 300mm (12 inches), it delivers reliable measurements for small to medium objects. Constructed from heat‑treated tool steel and finished with chrome, the caliper resists corrosion and maintains a smooth, reflective surface for easy reading. The inner jaws provide a burr‑free surface that stays tight even after prolonged use, while the outer jaws operate smoothly for quick transfers of measurements to workpieces.

Usage

This caliper excels in a variety of settings, from metalworking shops and woodworking studios to scientific labs and home DIY projects. Use the inner jaws to measure the inside diameter of holes, slots, or pipe interiors, and the outer jaws to gauge outside diameters, thicknesses, and overall dimensions of sculptures, pipes, or fabricated parts. Its compact size and ergonomic design make it comfortable for extended use by technicians, craftsmen, and hobbyists.

Why Choose Us

HARFINGTON is known for delivering high‑quality hand tools that combine durability with precision. This joint caliper undergoes rigorous heat treatment to ensure dimensional stability, and the chrome coating adds an extra layer of protection against wear and rust. Each unit is inspected for accuracy, guaranteeing consistent performance across the entire measurement range.

Key Features

• Accurate 300mm (12″) measurement range for versatile applications
• Heat‑treated tool steel body with chrome finish for durability and corrosion resistance
• Burr‑free inner jaws stay tight, ensuring long‑term precision
• Easy‑operate outer jaws for quick transfer of measurements
• Responsive customer support and warranty for peace of mind

FAQ

What is the measurement accuracy of this caliper?

The caliper provides an accuracy of up to 0.02mm within its 300mm range, suitable for most professional and hobbyist tasks.

Can the caliper be used on wet or oily surfaces?

For best results, keep the jaws clean and dry. While the chrome finish offers some resistance, excessive moisture or oil can affect accuracy.

Is a warranty included?

Yes, HARFINGTON offers a one‑year limited warranty covering manufacturing defects and includes access to our technical support team.

How do I maintain the caliper?

Wipe the jaws with a soft cloth after each use, avoid harsh chemicals, and store in a dry environment to preserve accuracy.

What sizes are available?

This model is offered in multiple lengths ranging from 150mm to 600mm; the 300mm version is ideal for most general‑purpose measurements.