What is a hand drill? Uses and classifications of hand drillsWhat is a hand drill?

A hand drill is a device with a specialized drill bit used to drill, chisel, catch, open screws, … on different surfaces and operate on battery power and power supply. Drilling machine supports the working process of mechanics, carpenters, construction,… However, today, hand drill products are more and more popular when used at home, in simple repair jobs. Working mechanism of hand drill: When the machine starts to start, the power source will generate DC current to go to the brushes to make the motor rotate. The rotary motor drives the drill shaft to rotate to drill holes in different materials. At the same time, when the engine rotates, it also rotates the fan, which helps to cool the engine during operation. Check out some products at: https://dungcuvang.com/collections/may-khoan