Electric wrench brush is good or no brush is good, the difference where

Electric wrench has advantages and disadvantages of brush and brushless, the specific difference is as follows:
Brushed electric wrench

Construction: The brush electric wrench uses a brush motor, which has a carbon brush and a commutator inside the motor.

Advantages:

Cheap: Brushed electric wrenches are generally cheaper than brushless electric wrenches because of lower manufacturing costs.

Easy maintenance: Because of the simple structure, the replacement of carbon brush is relatively easy and low cost.

Cons:

Low efficiency: The energy loss of the brushed motor is large, and the efficiency is relatively low.

Short life: Carbon brushes and commutators wear out, need to be replaced regularly, and have a relatively short service life.

Brushless electric wrench

Construction: The brushless electric wrench uses a brushless motor, there is no carbon brush inside the motor, and an electronic controller is usually used to regulate the operation of the motor.

Advantages:

High efficiency: brushless motor has low energy loss, high efficiency and longer working time.

Long life: no carbon brush and commutator wear, the motor has a longer service life.

Low noise: Because there is no friction between the carbon brush and the commutator, the noise is small.

Good heat dissipation: brushless motor has good heat dissipation effect and low operating temperature.

Low maintenance cost: brushless electric wrench basically no maintenance, reducing the cost of replacement parts.

Cons:

Higher price: Due to higher manufacturing costs, the price of brushless electric wrenches is usually more expensive.

Complex maintenance: The electronic control system of the brushless electric wrench is more complex, and the maintenance requires professional knowledge and high cost.

Loud noise: The friction between the carbon brush and the commutator produces a large noise.

Poor heat dissipation: Due to the heat generated by the friction of the carbon brush, the heat dissipation effect is relatively poor.

Sum up

If you have a limited budget and don't mind replacing your carbon brushes regularly, a brushed electric wrench may be more for you.

If you're looking for high efficiency, low maintenance and a longer service life, a brushless electric wrench is a better choice.

The specific choice of which type, but also according to your actual needs and frequency of use to decide.