Solid Carbide Twist Drill Bits

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Manufactured in accordance with ISO 9001 processes to ensure excellent performance.

  • Custom sizes and coating options available to suit your project.
  • Suitable for machining a wide variety of materials.
  • Delivers higher efficiency and improved accuracy for your workpieces.

Carbide Twist Drill Bits Manufacturer in Thailand

ZLY is your preferred carbide drill manufacturer. We design and produce machine twist drills of various sizes and types. ZLY also accepts custom orders and will do our best to meet your most detailed requirements.

For carbide twist drills, ZLY can meet requirements for various sizes and types with diameters from 0.2 mm to 32 mm. When machining hard metals such as high-hardness steel, carbide drills are the first choice. In addition, we provide different coating options. We can also customize any tungsten carbide twist drill according to your project requirements. You are welcome to contact us at any time.

The Important of Choosing ZLY Carbide Drilling Tools

ZLY solid carbide drills are designed for high-efficiency, high-quality production. Their main features include the use of premium carbide materials with hardness above 90 HRA (from leading brands such as Guhring), as well as industry-leading tool coatings from Oerlikon and Balzers.

These advantages ensure excellent wear resistance, extremely long tool life, and very high machining efficiency. With extensive experience in industries such as automotive, aerospace, and medical device manufacturing, we are able to design and produce professional cutting tools that best meet your specific application requirements.

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Custom Twist Drill Size Range Available from ZLY

ZLY’s strong manufacturing capability can meet all machining applications that require solid carbide cutting tools. Our CNC drilling tools are best for machining metals such as aluminum, copper, steel, stainless steel, titanium alloys, and hard metals. Below is the size range of twist drill we can produce.

Cutting Diameter

0.2mm – 35mm

Cutting Length

0.2mm – 250mm

Shank Diameter

1mm – 32mm

Overall Length

20mm – 330mm

Helix Angle

15° – 75°

Coating Services

TiN, TiCN, TiAIN, ALTiN, DLC, etc.

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Additional Services

Beyond supplying high-quality cutting tools, we also offer the following services:

  • Competitive pricing
  • Free tool design based on your workpiece drawings
  • Free dimensional inspection based on your tool samples
  • Laser marking according to your requirements
  • Free local delivery within Thailand

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ZLY: Your Professional Solid Carbide Twist Drill Bits Manufacturer

In fact, with the development of the manufacturing industry today, carbide drills are becoming increasingly important in various application fields.

These tools play an indispensable role in ensuring drilling accuracy and high efficiency.

If you have non-standard hole size requirements, custom carbide drills will be your perfect choice.

If you are looking for a way to customize carbide drilling tools, then this guide is exactly right for you.

Here, I would like to introduce all aspects of carbide drills.

After reading this guide, I am sure you will be able to make informed decisions when customizing carbide drills.

What is a carbide drill?

carbide drill is made by sintering carbide materials (such as tungsten carbide).

Its hardness, wear resistance, and heat resistance are far superior to HSS, and it is mainly used for machining difficult-to-cut materials such as stainless steel, cast iron, hardened steel, and high-strength steel.

What is the difference between carbide drills and HSS drills?

Carbide drills use material that is superior to high-speed steel. They are harder, more wear-resistant, and more heat-resistant, and are suitable for drilling all metals.

High-speed steel has lower hardness than carbide and is low in cost. It is only suitable for machining general metals or for use in hand tools.

What factors should be considered when selecting carbide drills?

  • Material: Carbide is the first choice.
  • Coating: For machining copper and aluminum alloys, use DLC coating or no coating. For high-hardness metals, use TiAlN or AlTiN to improve wear resistance.
  • Geometry: Different metals require different cutting edge angles, helix angles, and flute designs. These details will be perfectly designed by ZLY for you.
  • Shank design: Must match the tool holder.

What materials are suitable for carbide twist drills?

Copper and aluminum alloys, cast iron, high-strength steel, stainless steel, titanium alloys, etc.

What precautions should be taken when using carbide drills?

  • Spindle speed: Carbide has a high carbon content. Using too low a speed can cause edge chipping, so higher spindle speeds are required.
  • Rigidity: Ensure sufficient rigidity of the machine, fixture, and workpiece to avoid tool damage caused by vibration.
  • Cooling: Coolant should be used during machining to ensure tool life.
  • Chip evacuation: Ensure smooth chip removal to prevent clogging.

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