Oct 1, 2017, 7:47:45 AM Business

No one better than the interested one himself to know what investment to make when choosing the ideal drill.

It is normal that you have doubts in your choice, but remember that you should not be too right in terms of power and performance of the ideal drill of your needs.


Remember that you have to consider:

  • Materials you are going to drill and drill. What is the resistance that will oppose the tool?
  • Types of work that the tool will develop: drilling, sanding, tightening and loosening, mixing of materials, ...
  • Time and frequency of use. They will be long times or on the contrary ... sporadic jobs.
  • Working Lugres. With nearby sockets, or without outlets. Many places in a single day, such as a telephone installer, for example.

As you can see the factors can be multiple and the needs very diverse. There is no fixed pattern to define which drill to choose is perfect for your needs.

Generally, it is usually a mix of the ones we have presented, and sometimes you will need more than one tool for the various jobs if you are a professional.

In the case of professionals, they are usually very clear which is the ideal tool for their needs, but for those who start new jobs, there is never any other guidance that helps to commit the least possible errors in tool investments.


Characteristics and performance of the drills

We can not leave this post lame without speaking in a general and superficial way about the different features and performance of the various portable hand drills on the market.

Among them, the most common are power, speed, and direction of rotation, chuck or drill holder, percussion, design and grip, types of batteries, ...

There are really many details that define a drill. Let us enter a little in the characteristics commented:



The power factor is the one that defines the force that the machine has to work and it is measured in watts. The greater power, the greater power to carry out the work.

Most cable drills are typically between 500 W and 1300 W.

A drill with little power and that is forced to work long in the time and requirements of resistance to the important work will reduce to a great extent the useful life of the drill.

It is rare to see professionals who fall below 750 W of power. This is a simple guide for you to do your power demand calculations.

Personally, I would not buy a drill underneath for professional use, another thing is to make some punctual holes in the home. For these tasks with simpler drills, they fulfill the mission well.

The power of wireless drills is classified according to the voltage delivered by the battery. Most DIY models have a 9.6 to 18 V battery, while some up to 32 V is intended for professional users.


Speed and direction of rotation:

When choosing the ideal drill, your needs have to determine if you need a drill with constant speed or on the other hand a drill with the variation of the revolutions per minute (rpm).

Single speed drills between 2000 and 2500 rpm, are more affordable in money but do not give the benefits that may have other professional drills. These are usually the most used for the home and with a small demand for benefits.

There are other holes that allow you to select two or more fixed speeds. This is of great help to be able to work different hardnesses and resistances of materials.

On the other hand, you can find drills with variable speed control. This control can be carried through the trigger or by means of a potentiometer of speed and power. These drills are usually more common in professional areas but are also recommended for other types of work since the power regulates the speed of the range of materials to work.

But in addition, portable drills are usually provided with a double direction (left and right), which will give more benefits especially if we use as a screwdriver and to unclog the jammed bits.


Door drills or mandrel:

The old drill bit holders came with a wrench that allowed the drills and other accessories to be assembled and disassembled. To this day, we have models of porta-drills or mandril without the key. We can mount and disassemble the drills with a much more comfortable system.

The most common drill holders or mandrels are 10 mm and 13 mm the maximum capacity that can accommodate in tool diameter (drills). The 10 mm drill bit holder is suitable for household or DIY work. The drill bits for steel with a maximum diameter of 13 mm (drill bits) are most suitable for demanding work.


Drills with hammer:

This percussion function is suitable for hard materials such as bricks, concrete, and masonry. The hammer drills have a switch for activating or deactivating this function. Percussion moves the drill holder quickly in a hammer motion.


Cordless Drills with Battery:

The battery amperage indicates the battery life. The amperage is measured in Ah and varies between approximately 1.1 and 2.4 Ah.


3 models of batteries for wireless drills:

  • Nickel-cadmium (Ni-Cd), more affordable price and lower amperage.
  • Nickel and metal hydride (Ni-MH), have no memory effect.
  • Lithium-ion (Li-ion), good performance, higher power and lower weight. Its cost is higher.

At present, many drills are provided with two batteries that recharge in an hour, is a model of batteries very advisable for professional uses.

There are drills that have smart chargers. These allow you to see the progress of the load. When the charge is complete, they are turned off automatically to prevent possible overload.


Other interesting drill features to consider

Reverse gear function:

This function transforms the drill into an electric screwdriver. Recommended function to help dislodge a jammed bit.


Screwdriver function:

Most cordless drills incorporate this function. It is a torque or torque control device, which turns off the drill when a certain rotational force is reached.

The adjustment is made by means of a numbered dial that can reach 31 positions, where the low numbers correspond to a low torque. Low torque, less tightening force.


Depth stop:

Some incorporate a depth stop to prevent the drill penetrating beyond what is desired. This has to be able to disassemble easily.


Automatic brake:

Stop the drill bit when you stop pulling the trigger.


Adjustable auxiliary handles:

They allow greater control of the drill's strength and position to the user during the work.



Drills that do not have percussion, are most suitable for metalworking. On the contrary, drills with a hammer are more advisable for the works in concrete, ceramics, cement, ...

Think and value how to choose a drill according to the tasks to be performed according to the tool, materials to work, place, and frequency.

I hope it helps you make a good decision, and if you liked to share it in social networks. Your acquaintances and friends will thank you and I will 1000 times. 1000 thanks.

Published by Aariya Rafi

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