You can easily drill various diameters of holes with using a single bit due to its stepped design. This bit can penetrate up to 0.25 inches inside the metal. Step drill bits are generally used for the metals. Moreover, countersink drill bits can sit properly without twisting from the surface due to its tapered fastener head. These bits make small pilot hole initially with the help of small middle hole, which pierces the material thoroughly. These bits are normally used for the drilling in wooden surface. Moreover, these bits are made from high speed steel and do not have any sort of coatings. These bits are commonly used for the wood and plastic surfaces. Counter bore cobalt drill bits are used to cover the apex of fastener. Counter bore cobalt bitsĬounter bore cobalt bit has flat bottom with a tiny middle hole, which cuts the surfaces thoroughly. Few bits have coatings of gold oxide, bronze oxide to increase the heat resistance capacity of bit. Hence, there is no concern of breaking or spinning or twisting for the shorter twist bits. Moreover, the sturdiness of the cobalt twist drill bit enhances with the shorter length of bit. It comes in different sizes to perform multiple jobs. This is the most preferable type of cobalt drill bit, which is used for variety of operations. Twist cobalt bitsĬobalt twist drill bits are used for all sorts of surfaces and materials. Due to the higher amount af coablt M42 is harder than M35.What are the Different Types of Cobalt Drill Bits available in the Market?īelow are the types of cobalt drill bits on the basis of their tip style, length and shank style: 1. M35 has 5% cobalt include,d and M42 has 8% cobalt included. According to the Co mixture, cobalt drill bits are two types. Due to the hardness of the cable drill bits, it can be used to drill hardened metals such as welding seams. In ConclusionĬobalt drill bits are essential for both woodworking and metalworking. As mentioned in the table above, cobalt has a higher hardness than titanium. The hardness of an element or mineral has been identified as a measure of the relative resistance to scratching, and in this concept, the known hardness is derived from scratching against another material. Mohs Hardness Scale is an easy way to identify an element. The cobalt drill bits are a dull gold color and titanium bits can identify as HSS bits with brass or orange coloring.
The most striking difference between cobalt and titanium is their color and appearance. Is Titanium Drill Bits Better Than Cobalt Drill bits? Characteristicĭifferences between cobalt and titanium drill bit In addition, the lifespan of a bit depends on the type of bit used and the drilling technique used. A high level of melting point helps to do the long-period drilling process. Therefore, it can be sharpened when it becomes blunt. And during the production process of cobalt drill bits from HSS drill bits, there has no outer surface painting process. On the ability and inability to sharpenĬobalt is an element between “ Mohs scale” numbers 7-8 and its means it is a harder metal.The durability of any drill bit depends on The durability of cobalt and titanium bits was discussed earlier in this article, but we will discuss them further here. The Durability of Cobalt Drill BitsĪnother factor that we all consider when buying a product from the market is its durability. When concerned with the drilling of the concrete carbide drill bit is most suitable than the cobalt drill bit because the carbide drill bit is harder than others.
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