Last updated on April 28, 2021 by qualified builder Aaron Barnett
Brushless drills are rapidly taking over the power tools market. They currently make up 30 – 50% of all cordless drills sold around the world.
Brushless drills make use of a brushless motor, which is a step up from a conventional DC motor.
Brushless drills do away with carbon brushes, running more energy-efficiently and requiring less maintenance, due to the fact that there is no need to replace the brushes. Brushless design allows for smaller and lighter drills with even more power.
So, what else makes brushless drills better than brushed ones? Let’s find out and drill down the details.
Why use a brushless drill?
Brushless motors are capable of achieving higher RPMs than standard ones. Performance is significantly increased as there are no longer brushes that touch the rotor and slow it down due to the added friction.
The design of brushless motors is centered on reducing friction, allowing you to fully maximize available power.
Modern brushless drills are less intensive on their battery use since the motors actually adjust consumption based on how much resistance the drill encounters when working. This means that drilling through lighter materials, such as drywall and styrofoam, doesn’t use up 100% of the current battery.
Conventional DC motors need to have their brushes replaced to remain operational. Regular use eventually wears down the brushes due to all the friction. Brushless drills eliminate this problem and are naturally suited for longer-term use without maintenance.
How does a brushless motor work exactly?
What is a brushless drill and how does it work? Both brushed and brushless motor assemblies consist of two main components: a stator and a rotor.
A computer control chip and hall effect sensor inside the motor then creates a closed-loop so that the motor knows exactly how fast it’s spinning. This innovative design makes brushless motors more intuitive and durable than standard DC ones.
Parts of a cordless brushless drill
Wondering what is a brushless cordless drill made of? Here are the parts of a cordless drill:
Brushless drills vs brushed drills
Over traditional brushed drills, the added efficiency and durability of brushless drills simply make them superior. This isn’t to say that you shouldn’t get a brushed drill at all, but take look at a what brushless drills offer:
- Longer lifespan due to the absence of carbon brushes.
- Longer up-time due to computer-assisted power consumption.
- A low-friction motor produces higher RPMs.
- Lower friction reduces heat build-up even in prolonged use.
- The motor design allows for smaller and lighter models without compromising output.
- Difficult and more expensive to repair.
- They are more expensive, costing 30% more to manufacture and even greater to purchase.
When is time to replace a drill’s brushes?
If you are still using a brushed drill, keep an eye out for the following symptoms as they are signs that it might be time to replace your brushes:
How do you replace the brushes on a brushed drill?
Who made the first brushless drill?
So who made the first brushless motor in a drill?
It was from then on those other manufacturers, such as DeWalt and Milwaukee, followed suit by creating their own line of brushless drills and other power tools.
The shift to brushless motors resulted in the emergence of more intuitive power tools, with some even able to remember optimal power and speed settings for specific applications. Such is the case of Milwaukee’s One-Key smart tools.
Should you get a brushless drill over a standard drill?
Choosing whether or not to buy a brushless drill depends on personal preference as well as situational needs. Those working on a budget might have a hard time acquiring one of these as they are more expensive, but the benefits greatly outweigh the costs so it’s actually wiser to invest in one for the long-term.
Speaking of length, since brushless drills are made to last and operate longer, beginners, casual DIYers, and even professionals can all take advantage of the tool’s numerous merits.
Who makes the best brushless drills?
Founded in 1915, Makita has been producing top-quality tools for over 100 years. With their experience and renown, it’s not surprising how this brand came to be known globally as one of the greatest when it comes to commercial tools manufacturing.
Since Makita pioneered the brushless drill, it’s safe to say that they have the best money can buy.
DeWalt was founded in 1920 and is credited for perfecting the design of the 1st woodworking machine. For most, DeWalt is the American counterpart of Makita, producing power tools whose quality rivals that of the Japanese tool giant.
Stepping in on the scene in 1924, Milwaukee Tool has since led the industry in the development of innovative solutions for increased tool productivity and durability.
Catering more to the masses of professional electrical workers, Milwaukee chucks out a wide range of reliable and affordable tools; brushless drills included.
Reliability plays a big part when it comes to power tools. Brushless motors ensure that you can always count on your drill whenever you need it.
Not only does it do away with the nuisance and limitations of carbon brushes, but it also does a one-up on conventional drills by giving you a smaller and lighter tool that packs a bigger punch.
While brushless drills may not be for everybody due to their significantly higher price, investing in one is definitely a practical move to make – it’s a decision that’s almost as intuitive as brushless motors.
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