Boring Bar vs Boring Head: Which One Should You Use?

Both boring bars and boring heads are used to make an existing hole bigger and more accurate. But they work in different ways, and each one is best for certain jobs.

What is a boring bar?

A boring bar is a long tool with a cutting edge at one end. It is often used on a lathe or a machining centre, and it is very good for deep holes. Because the bar is long, it can bend or shake if it is not set up well.

What is a boring head?

A boring head is a holder with an adjustable cutting tool. You turn a dial to move the tool by a very small amount. This lets you set the bore size with high accuracy, and it is easy to correct the size between cuts.

When to use a boring bar

• Deep holes where you need a long reach
• Lathe work and repeat jobs on the same size
• Jobs where a fixed tool is enough

When to use a boring head

• Jobs that need an exact diameter
• Different bore sizes on the same machine
• Fine finish work on a mill or machining centre

Tips for a better finish

• Keep the tool overhang as short as the job allows
• Use a sharp insert that suits your material
• Take a light final cut for a smooth surface
• Check the tool is clamped firmly

Not sure which one fits your job? Our team can help you decide.