Hole saw drill bits allow to bore large diameter holes in metal structures. They are used as a bit for a drill or some other equipment. They are made as tubes with toothed edges.
Hole saw drill bits: 8 important facts
- They can be made of different metals. For example, it can be high-speed steel which makes the tool highly durable. There are also models with a coating containing titanium. Thanks to it, the hole saw drill bit features higher wear resistance. There are also devices made with the use of hard alloys. As a rule, only the cutting part is made of them. These tools are intended for operations with structures made of especially hard materials. These tools are indispensable when working with heat-resistant steels and cast iron. They have higher durability than the steel ones.
- In the catalogues, there are devices with carbide or diamond coating. As a rule, they are used for dealing with hard but rather fragile car parts.
- Hole saw drill bits differ in the maximum drilling depth. It can be 32 or 45 mm, for instance. However, this parameter also depends on the properties of the workpiece you’re going to make a hole in.
- These tools are often supplied with adapters, keys and other accessories.
- Be sure to read the manual of the equipment you’re going to use together with the bit. Besides, you should make sure that it is compatible with the material of the workpiece.
- It is recommended to use a special lubricant. It not only increases the efficiency of work but also extends the service life of the equipment.
- Drilling produces metal swarf. You must not let it get into your eyes or airways. Therefore, you should wear protective goggles and a respirator. Besides, it is necessary to remove swarf from time to time by lifting the bit above the hole and making quick rotational movements with it.
- The device must be held at a right angle to the surface of the workpiece.
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