Impact drill, mainly used for drilling, is an indispensable electric tool for decoration or maintenance, the application is more widespread, not only to facilitate the production, and the use of good results, but in the purchase, often hear the brush and brushless points, many friends do not quite understand, is not a drill, and what brush brushless points?

In fact, it is not difficult to understand, the purchase does have to know the difference between brush and brushless, brush refers to the carbon brush, the use of brush commutation, to ensure the normal operation of the motor; conversely, brushless without carbon brush, with Hall sensor commutation, drive transmission, to ensure the normal operation of the motor, so in the end is the brush drill good, or brushless drill good? What is the difference between the two? This is also a matter of concern, the following analysis to everyone, take a look!

A brush drill advantages and disadvantages

1. Advantages: brush drill is relatively cheaper, the structure is relatively simple, control is also relatively easy, the current is relatively high when starting, start fast, in the low-speed operation, the torque is larger, the weight effect is good, speed control is relatively smooth.

2. Disadvantages: carbon brush friction, easy to produce electric sparks, many occasions can not be used, and there is a certain amount of electromagnetic interference to the outside world, easy to heat, relatively low efficiency, short life, but also often replace the carbon brush, more trouble.

Second, the advantages and disadvantages of brushless drill

Advantages: Hall sensor and driver instead of carbon brushes, no friction, low noise, a wider range of applications, some precision fields are also applicable, basically does not require any maintenance, applicable life is relatively long, especially for speed control is relatively high.

2. Disadvantages: a little expensive, relatively more complex structure with brushes, the design is relatively difficult.

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Brushless drill is good or brush drill is good? The above has made a simple comparison, relatively speaking, certainly brushless drill to be better, more comfortable to use some.

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