What is a Center Gauge? How to Use It and Its Uses

Are you working with screw threads or using a lathe? Then you’ve probably heard of a center gauge. It’s a small but super important tool. In this post, we’ll explain what it is, how to use it, and why every machinist needs one.

What is the Center Gauge?

A center gauge is made of hardened and tempered spring stainless steel. It’s used to check the angle of cutting tools when you’re grinding or setting them on a lathe. You can use it to check thread angles, set cutting tools, and position tools for making internal or tapered threads.

It comes in 55° or 60° angles and has a fishtail shape. It features measurements in both millimeters (mm) and inches. It’s also known as a fishtail gauge because of its shape. Cool name, right?

How to Use the Center Gauge

Using a center gauge is easy. Here’s how:

• Place the center gauge on your cutting tool.
• Make sure the tool’s angle matches the lines on the gauge.
• Adjust your tool if it’s not aligned.

This helps make sure your threads are cut clean and accurately.

Center Gauge Uses

A center gauge is used for:

• Checking thread angles while cutting.
• Aligning cutting tools in lathe machines.
• Measuring angles during grinding and sharpening.
• Setting up single-point threading tools.

Conclusion

A center gauge may look small, but it does a big job. From shaping threads to checking angles, it keeps your work sharp and correct. Whether you’re a beginner or a pro, this tool is a must-have in your workshop.

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