All categories
Featured selections
Trade Assurance
Buyer Central
Help Center
Get the app
Become a supplier

About products and suppliers:

Cobalt drill bits are a type of high-performance drill bit that contains cobalt alloy as part of the metal composition. The addition of cobalt increases the hardness and heat resistance of the drill bit, making it well-suited for drilling into hard materials such as stainless steel, cast iron, and other metals. These drill bits are popular among professionals and DIY enthusiasts who require durable and efficient tools for metalworking applications.

The making of cobalt drill bits and their advantages?

Cobalt drill bits are made from high-speed steel (HSS) that contains a significant percentage of cobalt. The cobalt content enhances the hardness and heat resistance of the drill bit. Cobalt drill bits are known for their high hardness, allowing them to maintain sharp cutting edges even when drilling into tough materials. This hardness contributes to extended tool life. The cobalt alloy in these drill bits provides improved heat resistance compared to standard high-speed steel drill bits. This makes them less prone to overheating and helps maintain their cutting effectiveness at high temperatures. Cobalt drill bits are particularly effective for drilling into hard metals, including stainless steel, cast iron, and hardened steel. They are also suitable for drilling into abrasive materials. The hardness and heat resistance of cobalt drill bits contribute to their overall durability, reducing the frequency of tool replacement. Some cobalt drill bits feature specialized coatings or surface treatments that help reduce friction during drilling. This can contribute to smoother drilling and increased efficiency.

What are cobalt drill bits used for?

Cobalt drill bits for metal are commonly used in metalworking industries, automotive repair, construction, and other applications where drilling into tough materials is a frequent requirement. It's important to note that while cobalt drill bits for hardened steel excel in drilling hard materials, they may be overkill for softer materials like wood or plastic. Additionally, users should match the drill bit size and type to the specific application and material being drilled to achieve optimal results.

Titanium vs cobalt drill bits

The choice between titanium and cobalt drill bits depends on the specific drilling requirements. Titanium bits are versatile and cost-effective for general use, while cobalt bits are ideal for heavy-duty applications involving hard metals where durability and heat resistance are crucial. Choose titanium drill bits for general-purpose drilling and cobalt drill bits for demanding applications involving hard materials. Buyers can find left-handed cobalt drill bits to cater to left-handed customers. These drill bits are engineered with a reverse flute design, meaning the flutes spiral in the opposite direction compared to standard (right-handed) drill bits. This design is advantageous for certain applications, especially when dealing with materials that tend to grab onto the drill bit. The primary distinguishing feature of left-handed cobalt drill bits is their reverse flute design. The flutes spiral counterclockwise, allowing the bit to turn in a left-handed direction. The reverse spiral design of left-handed cobalt drill bits can be advantageous in certain situations. For example, when drilling into metal, the bit may encounter less resistance and is less likely to grab or bind in the material. Purchase cobalt drill bits for stainless steel wholesale at affordable prices on Alibaba.com today.

Haven't found the right supplier yet ? Let matching verified suppliers find you.

Get Quotation Now

FREE

Request for Quotation