Chipbreaker

Chipbreaker Inserts – Precision Cutting Made Easy

At CNC Tools Depot, we bring you a complete range of chipbreaker inserts from leading global brands including Korloy, Widia, Kennametal, Taegutec, Mitsubishi, Sandvik, and more. Chipbreaker inserts are essential in modern machining for controlling chip formation, improving surface finish, and enhancing tool life.

Whether you are working on steel, stainless steel, cast iron, non-ferrous materials, or high-temperature alloys, choosing the right chipbreaker ensures efficiency, safety, and cost-effectiveness in your machining operations.


🔹 What is a Chipbreaker Insert?

A chipbreaker is a specially designed groove or geometry on a carbide insert that breaks long, continuous chips into smaller, manageable pieces during machining. This improves chip evacuation, reduces tool wear, prevents surface damage, and enhances overall machining stability.


🔹 Applications of Chipbreaker Inserts

Chipbreaker inserts are widely used across industries such as automotive, aerospace, oil & gas, die & mold, heavy machinery, and general engineering. Common applications include:

  • Turning: Roughing and finishing of steels, stainless steels, and exotic alloys.

  • Milling: Effective chip evacuation in slotting, shoulder milling, and face milling.

  • Drilling & Boring: Smooth chip flow and reduced cutting resistance.

  • High-Speed Machining (HSM): Maintains tool stability at high feed and cutting speeds.

  • Interrupted Cuts: Prevents built-up edge (BUE) and tool breakage.


🔹 Types of Chipbreaker Inserts

Different chipbreaker designs are tailored to specific materials and machining needs. Some common types include:

  1. Finishing Chipbreakers (F):

    • Designed for light cutting depths.

    • Produces excellent surface finish.

    • Best for stainless steel and non-ferrous machining.

  2. Medium Chipbreakers (M):

    • Balanced for general-purpose machining.

    • Handles moderate depths of cut and feed rates.

    • Suitable for steels and cast iron.

  3. Roughing Chipbreakers (R):

    • For heavy-duty material removal.

    • High rigidity with strong cutting edge.

    • Ideal for automotive, aerospace, and forged components.

  4. Specialized Chipbreakers:

    • For high-temp alloys, hardened steels, and exotic materials.

    • Engineered for long tool life and resistance to notching.


🔹 Advantages of Chipbreaker Inserts

  • Improved Chip Control – Prevents tangled chips and machine downtime.

  • Extended Tool Life – Reduces wear and thermal stress.

  • Better Surface Quality – Achieves smoother finishes with fewer secondary operations.

  • Higher Productivity – Allows higher cutting speeds and feeds.

  • Safer Machining – Prevents chip accumulation and machine crashes.


🔹 Leading Brands Available at CNC Tools Depot

We stock chipbreaker inserts from all major global cutting tool brands:

  • Korloy Chipbreaker Inserts

  • Kennametal Chipbreaker Inserts

  • Widia Chipbreaker Inserts

  • Taegutec Chipbreaker Inserts

  • Mitsubishi Chipbreaker Inserts

  • Sandvik Coromant Chipbreaker Inserts

Frequently Asked Questions

A chipbreaker controls chip flow by breaking continuous chips into smaller pieces, improving machining performance.

It depends on your workpiece material, depth of cut, feed rate, and desired surface finish.

Finishing chipbreakers (F) with sharp edges and low cutting forces are ideal for fine surface finish.

Yes, many modern chipbreaker designs are optimized for high-speed and high-feed applications.

Not always. Specialized geometries exist for stainless steels to prevent work hardening and built-up edge. 

They are designed for heavy material removal, high feed rates, and longer tool life under tough conditions.

They can be used in both CNC and conventional machines, but CNC setups benefit most from controlled chip flow.

We offer Korloy, Kennametal, Widia, Taegutec, Mitsubishi, Sandvik, and more.

Yes, they minimize heat and friction, significantly extending tool life.

Because we offer the largest global selection, competitive prices, multiple brands, and fast shipping worldwide.