The Angle grinder has a brushless difference

Motor part:
The brush Angle mill uses a traditional motor, with a carbon brush and commutator inside, and the magnetic field is converted into kinetic energy after the operation of the carbon brush and commutator. The brushless Angle Grinder uses a brushless motor, and the rotor part itself has a magnet, so it does not need a carbon brush, and the magnetic field is larger after being energized.

Torque:
The torque of the brushless Angle grinder is greater than that of the brushed Angle grinder. This is because the brushless motor itself has a magnetic force, and the magnetic force will further increase after being energized.

Efficiency:
In the case of similar no-load speed, the speed drop of the brushless Angle mill is smaller than that of the brush Angle mill, and the efficiency is higher.

Consumables and Costs:
Brush Angle mill requires the use of carbon brush consumables, and accompanied by the power consumption and friction resistance generated by the friction between the carbon brush and the copper head, and these are not required by the brushless Angle mill, so the brushless Angle mill has more advantages in terms of consumables and reducing production costs.

Life span:
The life of the brushed Angle grinder is relatively short and easy to affect the normal use due to the wear of the carbon brush, while the brushless Angle grinder has a longer life due to the less wear of its internal components.

Noise:
The brushless Angle grinder operates smoothly and has almost no brush hot spots, so the motor noise is low. The noise of brushed motors is relatively large.