The first generation of the electric screwdriver is with carbon brushes inside. It installs a small carbon brush inside the electric screwdriver. However, there is a disadvantage, users have to replace these carbon brush frequently, and the generated toner will pollute the power screwdriver itself. So, the power tool also requires frequent maintenance and replacement of parts.
(1) Non-sparking: The most direct change is the use of brushless motor to remove the spark generated during brush operation, reducing the direct impact of spark on electronic equipment products.
(2) Low noise and smooth operation: The brushless motor has no brush, which greatly reduces friction during operation, enhances the smooth operation and low noise.
(3) Long service life and low maintenance cost: no carbon brush motor has no carbon brush and friction directly with the motor rotor. The wear of the brushless motor is mainly on the bearing. From a mechanical point of view, the brushless electric batch is almost a kind of exemption. The motor is more durable, and only need to do a simple dust removal maintenance.
(4) No fragility: Compared with the carbon brush structure, the carbon brushless electric batch does not need to replace the carbon brush, which greatly saves the material cost and the manual replacement of the carbon brush time.
For other classifications of electric screwdrivers, please refer to this article: How to Select Household and Industrial Electric Screwdrivers
