Want to know the difference between “Cobalt vs Carbide Drill Bits” ? , Here on this page we will provide you ultimate guide so that you can learn exact difference between Cobalt & Carbide Drill Bits. In this article we will explain which drill bit is best for your cordless drill. Which drill bit has the highest strength, gives best performance etc. will be included here. Along with that we will cover all the pros and cons related to them.
Both cobalt and carbide drill bits are specialized sorts of drill bits that are developed for drilling into hard materials; yet, their compositions and applications are distinct from one another. This is a comparison of drill bits made of cobalt and carbide to illustrate:
Cobalt Drill Bits:
Composition : High-speed steel (HSS) is used in the production of cobalt drill bits, and a sizeable amount of cobalt is added to the alloy throughout the manufacturing process. In most cases, the cobalt level falls somewhere between 5% and 8%.
Strength and hardness: When it comes to strength, hardness, and resistance to heat, cobalt drill bits are known for their remarkable qualities. Additionally, the incorporation of cobalt into the drill bit results in an increase in its hardness, which enables it to be utilized for drilling into hard metals such as cast iron and stainless steel.
Applications: Cobalt drill bits are designed to drill into very tough and abrasive materials, such as cast iron, stainless steel, and other hard metals. They are specifically created for this purpose. They are perfect for scenarios in which ordinary drill bits have a tendency to experience rapid wear and tear or become dull.
Performance: Cobalt drill bits provide good performance in terms of cutting speed, durability, and wear resistance. This is the fourth and last point. In comparison to normal HSS drill bits, they are able to keep their sharpness for longer periods of time when drilling into materials that are difficult to drill.
Carbide Drill Bits:
Composition: Tungsten carbide, a hard and brittle compound of tungsten and carbon, is the material that is used to make carbide drill bits. It is brazed onto the body of the drill bit that the carbide tip is attached to.
Strength and hardness: Drill bits made of carbide have a Mohs hardness value that ranges from around 9.0 to 9.5, making them incredibly tough and long-lasting. As one of the materials that is used in the manufacture of drill bits, tungsten carbide is one of the hardest materials because it offers high hardness and wear resistance.
Applications: Carbide drill bits are generally utilized for drilling into extremely hard materials such as masonry, concrete, tile, and ceramics. Carbide drill bits are also employed for other applications. Additionally, they are suitable for drilling into softer materials such as wood and plastic; nonetheless, their primary strength comes in their capacity to drill into hard materials including plastic and wood.
Performance: Carbide drill bits provide outstanding performance in terms of cutting speed, precision, and durability when drilling into hard and abrasive materials. This is something that is referred to as “performance.” In comparison to other drill bits, they are designed to keep their sharpness for longer periods of time and are less likely to become worn down over time.
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Pros of Carbide Drill Bits
- Drill bits made of carbide are recognized for their excellent longevity, as they have the capacity to drill over 1500–2000 holes before they need to be resharpened as necessary. A prolonged effectiveness is ensured by the fact that they may be simply resharpened even after being used multiple times.
- In comparison to cobalt, these drill bits are more resistant to heat and have a higher level of hardness, which results in increased chip resistance throughout the drilling process.
- Despite the fact that they may be more expensive than cobalt drill bits, carbide drill bits provide levels of performance that are unparalleled in a variety of drilling applications.
- Carbide drill bits are capable of operating at rates that are unusually high, which allows them to optimize cycle time and speed up production operations considerably. They lead to a reduction in cycle time, which in turn enhances efficiency during drilling operations, thanks to the presence of self-centering points.
Because of its construction made of hardened steel, they do not require peck drilling, which results in a drilling experience that is completely seamless. - The ability of carbide drill bits to drill five times their shaft size before needing to be pecked may result in more wear but means that they can be used for a longer period of time.
- The durability of carbide drill bits enables them to cut holes through coolant, which results in reduced temperatures during the drilling process and reduces the need for heat treatment of the drilled item as well as drill wear. Carbide drill bits are also capable of easily cutting through both soft and hard materials.
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Pros of Cobalt Drill Bits :
- Cobalt drill bits have an impressively long lifespan, which enables them to be used for a significant number of drilling operations before they require resharpening.
- They are easily resharpened after being used multiple times, which ensures that their efficiency will be maintained over time.
- Despite the fact that they are not as hard as carbide drill bits, cobalt drill bits are nonetheless resistant to heat and chipping, which allows them to provide dependable performance while drilling.
- Despite the fact that they may be less expensive than carbide drill bits, they offer outstanding efficacy in a variety of drilling applications.
- Drill bits made of cobalt are also capable of operating at high speeds, which contributes to an improvement in cycle time and manufacturing efficiency.
- Due to the fact that they are fitted with self-centering points, they bring about a reduction in cycle time, which in turn increases productivity during drilling activities.
- Although cobalt drill bits may require peck drilling after drilling to a certain depth, they are durable and long-lasting, making them suitable for a wide range of drilling applications.
- Cobalt drill bits offer variety in drilling jobs since they can cut through both soft and hard materials while still maintaining their cutting ability.
In a nutshell, carbide and cobalt drill bits each have their own set of benefits, and they are both ideal for a wide variety of drilling applications. Choosing one over the other is contingent upon a number of criteria, including the particular drilling requirements, the materials that are being drilled, and the required performance qualities.
