
Professional Metal Drill Bit Sets Manufacturer In China
Diversitech Global’s metal drill bit sets offer reliable performance for professional and industrial use.
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Stable Delivery Date
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Flexible MOQ to Meet Your Needs
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OEM/ODM Service

Stable Supplier of Electrician Tool Set
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Spiral groove design improves drilling efficiency by up to 30%
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The 135° Split Point drill tip design reduces offset and slippage
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Support customization of various packaging solutions
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Offer brand customization solutions such as laser engraving and label stickers
Product By Features

HSS Drill Bit Set
This is the most common type of metal drill bit, suitable for drilling holes in common materials.

Cobalt Drill Bit Set
This drill bits set is suitable for high-intensity continuous operations and is commonly used in the decoration industry.

Titanium Drill Bit Set
The drill bit surface is treated with a TiN coating, making it suitable for light to medium industrial applications.

Black Oxide Drill Bit Set
The surface of drill bit is treated with black anodizing, which provides rust resistance and wear resistance.

Hex Shank Drill Bit Set
This type of drill bit is suitable for decoration installation and on-site construction, and can be installed and replaced quickly.

Step Drill Bit Set
The drill bit has multiple stepped diameters, which can gradually increase the borehole diameter.
Features of Metal Drill Bit Set

Heat Treatment: The drill bit has undergone heat treatment processing, resulting in better strength and toughness.

Surface Coating: Part of drill bits undergo black anodizing or titanium coating treatment, resulting in good wear resistance and a long service life.

Complete Size: A full range of sizes to cover home repair and industrial application.

Compatibility: It is compatible with most power drills, such as corded drills, cordless drills, and drill presses.

Reliable Metal Drill Bit Set Solutions for Global Brands
The Metal drill bit sets of Diversitech Global are widely used in the construction installation, equipment maintenance, metal processing and industrial manufacturing. Whether it's the universal HSS drill bit set or the high-performance cobalt drill set, we can customize the product configuration by your target market and create the most competitive product line for your brand.

Titanium Coating Technology
Our factory uses precision grinding equipment and advanced coating processes to apply a uniform TiN coating to the cutting edges and spiral flutes of drill bits. This process significantly improves the wear resistance and service life of drill bits, making them particularly suitable for frequent drilling of steel, aluminum, and other metal materials.
Black Oxide Protection
As a professional drill bits manufacturer, Diversitech Global adopted black oxide treatment after heat treatment. During production, we rigorously control anodizing time, temperature, and surface cleanliness to ensure consistent appearance quality and stable cutting performance across every batch of drill bits. This process is widely used in economical and mid-range Metal Drill Bit Sets projects.

Diversitech Global has been deeply involved in the hardware tool industry for many years and is an experienced hardware tool supplier in China. We support OEM/ODM customization services for drill bit size, kit configuration, coating color, storage box and brand packaging. Whether machining soft metals, structural steel, stainless steel or cast iron, Diversitech Global drill sets can provide more precise drilling results and longer service life, meeting the high standards of professional users, contractors and industrial customers worldwide.
Company Advantage



About Metal Drill Bit Set
What drill bit material is best for metal?
It depends on what material you are going to drill into. Generally speaking, HSS drill bits can meet the drilling requirements for common metals such as aluminium, copper and ordinary steel. The M35 cobalt drill bit and M42 cobalt drill bit have better heat resistance and wear resistance, and are suitable for drilling in harder metals such as stainless steel and alloy steel.
What does a drill bit look like for drilling into metal?
Metal drill bits are typically manufactured with optimized spiral flutes for fast chip removal and smooth drilling performance. High-performance models may feature Black Oxide or Titanium Nitride coatings, providing enhanced durability, reduced heat buildup, and longer service life when drilling through metal materials.
Do I need oil when drilling metal?
It is very reasonable to use cutting oil and lubricant when drilling metal. Lubricating oil can reduce the friction between the drill bit and the metal and facilitate heat dissipation. The use of lubricants can extend the service life of drill bits. However, when drilling wood or plastic, lubricants are generally not required.




