With a unique nanocomposite coating that has properties similar to a natural diamond, DLC bits offer low friction, high hardness, and high corrosion resistance making them ideal for mortising, grooving, and dado in both industrial and woodworking applications.

Benefits of Amana Tool® DLC Router Bits and End Mills:

• Longer Tool Life: The DLC coating provides up to a 3 times longer tool life. This reduces downtime and replacement costs.
• Smoother Cuts: Smoother insert surface results in finer finishes with reduced tear-out.
• Variety Of Cuts: Excellent for cutting hardwood planks, laminates, melamines, melamine particle boards, MDF/HDF, oriented strand boards (OSB), and more.
• Reduced Heat Buildup: The low-friction coating helps dissipate heat more efficiently, preventing premature wear.
• Corrosion Resistance: Ideal for humid or demanding workshop environments.

Amana Tool® DLC-coated router bits and end mills provide what you need for professional-grade results.

FAQs about Diamond Like Carbon (DLC) Router Bits

How do I know when to replace my DLC-coated router bit or end mill?
Even though DLC coatings dramatically extend tool life, you should replace the bit when you notice burning, tear-out, excessive vibration, or a dull edge on close inspection. Inspect cutting edges regularly—if the base carbide is exposed or worn, it’s time for a replacement.

What safety precautions should I follow when using DLC-coated router bits?
Always wear proper eye and ear protection when using any router bit or end mill. Ensure your CNC machine is properly maintained and securely clamps your material. Use the correct feed rate and spindle speed to prevent tool breakage or material damage.

Why am I seeing burning on the edges of my cuts, even with a DLC-coated bit?
Burning can indicate that feed rates are too slow or that the bit is dull. DLC coatings reduce friction, but they can’t overcome incorrect speeds or a worn edge. Increase feed rate slightly, and check the bit for sharpness. Also ensure material isn’t overly resinous or heat-sensitive.

What’s the best way to get the cleanest finish with DLC-coated router bits?
For ultra-clean results, use sharp DLC-coated bits at optimal feed rates and make final passes at lower depths of cut. The low-friction coating allows for faster cutting, but a lighter finishing pass helps produce smoother edges—especially on laminates and hardwoods.

How do I choose the right DLC-coated bit for my application?
Match your bit geometry to the material and cut style you need. Use up-cut bits for efficient chip removal, down-cut bits for clean top edges, and straight or compression bits for double-sided laminates. If unsure, check the product specs or consult Amana Tool®'s recommendations.

How should I clean DLC-coated router bits?
Use a non-abrasive cleaner designed for router bits to remove pitch and resin buildup. Avoid harsh abrasives that could damage the DLC coating. Soak the bit briefly, brush gently with a soft brush, then dry completely before storage.

Are DLC-coated bits really coated with diamonds?
Not exactly—but close! DLC stands for “Diamond Like Carbon,” a nanocomposite coating with some of the hardness and slickness of natural diamond. It’s not gemstone diamond, but the structure of the coating mimics many of diamond’s best properties—giving your bits exceptional wear resistance and a super-smooth surface for cutting.