There are a lot of different drill bits types manufactured for different purposes. Some will be better to be used for general home-improving projects, while some will be more suitable for sophisticated tasks with professional purposes. If you are a new DIYer who wants to build a bookshelf or repair an armchair, maybe you will not need to know much about some advanced types of drill bits. However, learning how to pick the right drill bits will be an essential skill when you start some more complicated project and want to improve your drilling skill.
1. Twist drill bits
The twist drill bit is the most popular and frequently used today in several jobs. The tip of the drill bits cuts the material and the flute’s job is to remove the swarf from the hole and keep the hole straight.
The geometry and the material can be changed to produce different specialized versions of the twist bit. The drill bit with a point angle of 118 degrees is the most widely used as it is suitable for a large number of materials such as wood, plastic, metal. Because it is so versatile, we highly recommend new handymen using this drill bits type for their project. If you want to drill soft material, we recommend using a 90-degree one, and if you want to drill through hard material like metals, a 150-degree and lower RPM is more suitable. Drill bits with a flat cutting point, as its name suggested, will be a wise choice if you want to drill a flat-bottom hole.
2. Tile drill bits
The tile drill bit is manufactured for drilling through weak material such as glass, plastic, or tile with a tungsten carbide tip. It should be used with low speed (RPM) and light pressure.
Tile bits are not strong enough to cut extra-hard material and to be used on hammer action drills. It also requires coolant for the best performance and an extended lifespan.
3. Masonry drill bits
Masonry bits are most suitable using on brick, stone, concrete, etc. The cutting tip is often made from tungsten carbide. The tip is extremely robust, has a long lifespan and provide unparalleled drilling speed. The cross tip also can produce clean and accurate holes.
Although a masonry bit can be used with a hand drill, it is better used in a power drill. Be careful when using masonry bits in hammer action drills. Low-quality masonry drill bits can be broken under pressure. When using a masonry bit to cut materials, you should lower the drilling speed when drilling harder material to extend the lifespan and remain the best performance.