ETPOWER Brushless Cordless Drill Driver kit 21V 13mm Electric Screwdriver

ETPOWER Brushless Cordless Drill Driver kit 21V 13mm Electric Screwdriver

A cordless drill is an electric drill which uses rechargeable batteries. Drills are primarily used for drilling circular holes in material, or for inserting screws and other threaded fasteners into material.

Brushed vs. Brushless
All cordless drills convert electricity into power by using the attracting and repelling actions of magnets to get the shaft spinning. Brushed motors require small metal brushes to work with the magnets to keep the shaft spinning. Brushless models have an electronic circuit board and a sensor to do the same thing. That has several advantages when it comes to performance, reliability, and durability. Brushless motors are:
1.More energy-efficient. Because there are no brushes rubbing against anything, no energy is lost due to friction. …
2.More responsive. …
3.Capable of packing more power, torque, and speed. …
4.Easier to maintain. …
5.Smaller and lighter. …
6.Longer-lasting.

What is in the box?
 

1 pcs 21V cordless brushless drill

1 pcs charger

2 pcs Li-ion batteries

1 pcs Manual