Radius Gauges

2 products

Specially designed for checking internal and external radii, radius gauges are useful tools to have on hand when the radius of an item needs to be determined.

At HK Calibration Technologies, we stock convenient radius gauge sets that are capable of measuring radii of 1 to 8 millimetres and 7.5 to 15 millimetres. Constructed from high-quality stainless steel, these gauges feature sizes marked on each blade and are provided with steel locking screws to keep the 17 convex and 17 concave blades together.

To learn more about our radius gauge sets, or to obtain advice on the best radius gauge for your needs, contact our friendly team today.

Frequently Asked Questions

A radius gauge set from HK Calibrations includes two types of leaves: concave leaves for measuring the radius of external rounded corners (convex surfaces) and convex leaves for checking internal rounded corners (concave surfaces), ensuring a perfect fit for any curved profile.

To get an accurate reading, place the gauge leaf against the curve and hold it up to a light source; if you can see light between the gauge and the part, the radius is incorrect. HK Calibrations provides high-precision sets that allow for this "light gap" test to be performed with extreme accuracy.

Our gauges are manufactured from high-quality satin-finish stainless steel. This material is chosen by HK Calibrations for its resistance to rust and its non-glare properties, making the size markings easier to read under bright workshop lights in Australian manufacturing facilities.

Yes, HK Calibrations radius gauges are commonly used by machinists to verify the nose radius of lathe turning tools and the corner radii of end mills, which is critical for achieving the specified surface finish and structural integrity of the workpiece.

We offer a variety of sets ranging from small fractional and metric increments (e.g., 0.5mm to 7mm) up to larger industrial sizes. HK Calibrations ensures that whether you are working on fine instruments or large mechanical components, you have the right gauge for the job.

To ensure your measuring leaves have not worn down or become deformed over time, HK Calibrations provides professional calibration services. We verify the accuracy of the leaf profiles against master standards to ensure your quality control processes remain reliable and accurate.