There are several types of drills according to their intended use. The design of these pieces considers the speed with which the material is to be removed and the hardness of the material to be drilled and other characteristics of the material, whether for wood, walls, sheets, etc.

In this article, you will be able to know all the types of existing drills, the material of which they are made and their specific uses.

Drills for wood

These drills have a thin, well-defined point at the center for very accurate drilling. This is because wood as a material is very soft and soft and must be very precise when drilling.

Drill for drilling: Its use is in conjunction with a hand drill. These types of drills allow drilling at very low rotation of the tool.

Three-bit drill for wood: They are the most used for drilling wood and are usually made of chrome-vanadium steel. Suitable for all types of wood: hard, soft, plywood, agglomerates, etc.

Pallet drill: Also known as a drill bit or flat drill for wood. It opens very fast holes of several diameters with drill or drill. This type of drill press for wood has a very sharp point, which serves as center and guide, very short length, then comes the paddle, which is the one that will make the hole calibrated, according to its diameter.

Drills c.-Intended to make holes of large diameter. These types of wood drills are also used for metals, concrete, and glass. They consist of a crown toothed in whose center usually has fixed a conventional drill that serves as the centering and guide of the hole.

Forstner Drills: Like the previous ones, they are used to create circular holes of different diameters. These types of wood drills make clean cuts and remove wood debris efficiently.

Broca e. - It is used to make holes where the screw is embedded or drowned in the wood very popular for unions of the type pocket hole. It is a drill bit for wood with the double diameter; the first portion is the approximate diameter of the housing body of the screw it housed. The second portion, longer than the first, is the diameter of the bit, which completely accommodates the diameter of the screw head.

Router or Tupi Drills.- These types of drills have several shapes for the elaboration of different profiles or cuts. The most known are those that have two cutting faces.

Drills for metals

also known as drills HSS As its name says it is used to drill metal and some other materials like plastic, brick and even wood. They are made of fast steel (HSS), although the quality varies according to the alloy and according to the method and quality of manufacture.

HSS laminated drill.- It is the most economical of metal drills. It is commonly used in metals and plastics where precision is not required. It is not of great duration since it is a type of drill press for metal that is not very well calibrated and easily loses the sharpness with hard materials.

HSS rectified drill.- It is a precision drill, suitable for all types of semi-hard metals (up to 80 kg / mm²) including cast iron, aluminum, copper, brass, plastics, and so on.

HSS titanium grinding drill.- They are coated with a titanium alloy that allows drilling of all types of metals with the highest precision, including difficult materials such as stainless steel. These types of metal drills can be used on large production machines but need cooling.

HSS cobalt grinding drill.- These are the highest quality metal drills and are recommended for drilling metals of all kinds including very hard (up to 120 kg / mm²) and stainless steel. They have a special resistance to temperature so that they can be used without refrigerant and at high cutting speeds.

Concrete Drills

They are used to drill wells and building materials exclusively. These types of drills can be used with percussion. In the head, they have a reinforcement that gives them a form of "shovel" since it is reinforced with a material of great hardness to increase the duration of the same and guarantee its capacity of perforation.

Laminated drill with tungsten carbide insert.- The body is laminated and suitable for plaster, cement, brick, uralite, sandstone, and limestone.

Milling with carbide insert of high performance.- The body is milled, and in addition to all previous materials, perforates without problems marble, concrete, slate, granite and in general all kinds of stone. Its power of penetration and its duration is much superior to the previous one.

Drills for glass

These types of drills are composed of a shaft and a tip of tungsten carbide (Widia) in the shape of a spearhead. They are used to drill glass, ceramics, tiles, porcelain, mirrors, tiles, etc.

SDS Drills

Drills SDSlas drills, which, unlike conventional ones, have a direct input, different in thickness and design, providing a superior performance to the drills since they allow higher revolutions.

SDS.-  The input of this drill is compatible with the SDS Plus and serves for light work.

SDS Plus.- It is the most popular drill bit in professional applications. From 4 to 30 mm with the fine fit.

SDS Max .-  The entrance of the drill bit is different and it is used for heavier work because its diameter is much greater. 12 to 40 mm thick.

Tip: It is advisable that when the drills are not in use, they are stored without there being any contact between them and much less between their edges.