The drill bits usually come with an extra coating which increases their performance and durability. The black oxide is used to save it from rust. Some are coated with titanium as it makes them stronger, sharper and harder. The coatings are usually thin. When the coating is worn-out, then the bits will work like the regular ones. If you are going to sharpen them, then remember that it will remove the coating as well. And also, the performance and durability will get an adverse effect.
The Essential Features of Drill Bits
The four core elements also define them in a more appropriate way.
1 – Point Angle
It is the angle which forms on the tip of the drill bit. The twist drill bits has a common point angle i.e. 118 degrees. Point angles are quite large for harder materials.
It determines the depth of the hole. It also helps to determine the strength and accuracy of the bit as well.
The spiral is also identified as the twist rate. It links with the chip rate removal.
4 –Lip Angle
If the lip angle is higher than it will mean that it will cut aggressively. It has a greater amount of cutting edge.
Types of Drill Bits
There are many types of drill bits, some of them are mentioned below:
It has an arrow type shape with flutes present on the sides. It is known as the uni-bit. The tip of it can be sharp or blunt. The sharpening completely depends on the material which you want to drill. It works well on metal sheets.
It is one of the most commonly used drill bits. It has very sharp ends. It also contains flutes which are used to throw out the material from the hole during drilling. It is very commonly used because of its versatility and performance. It can work well on various materials. It is also cheap in price and is obtainable in different sizes.
It is a very different drill bit which cuts around the sides yet leave the material in the middle.
It is specially created for drilling the glass and ceramic tiles. It also has tungsten which has a carbide tip.
It is used to make holes with a very flat bottom.
Drill bit selection is based on following factors: shape, size, hardness means how strong the material is, material forms and holes size. Holes can be of different sizes and shapes like small, medium and large to round, shallow, deep or others. Your object can be thick or thin in size or it can be hard or soft in form. It can have round, square, rectangle, diamond or others shapes. It can be made of different elements like plastic, metal, steel, glass fiber or wood and so on. Therefore before buying any drilling bits keep all these factors in mind. If your purchase is not according to mentioned factors then it all can go in vain. If you are a professional driller and need different sized drill bits, it is better to buy sets of drill bits than buying individually because set purchase can save your money, time and energy. In case you don’t want to purchase whole set, you can go for single options. Buy single products of the best companies workable on different materials.
Some companies are offering best quality set off drill bits including other accessories needed in drilling purpose on very reasonable prices. If you don’t have such necessary item and you want to buy these items then buy in sets rather than single. Single item can be costly then the sets.
Twist drill bits are good for many common projects and give quality results. You can go with the option of buying twist drill bit set because it is workable on many projects. In sets you can have multiple different sized bits which work differently according to their sizes and they can be use on any ordinary project or small projects. You must prefer your needs while buying best sets at cheap price. You can save money on making your own drill press machines. If you are working on complex project and you are in need of drill press instead of buying new press products you can make your own press machines at home which can save your money and you can enjoy the whole process of making your own machine. Sometimes your drill bits lose their functionality because of high usage in that case you can again make them workable by sharpening them at your home.