Drill safe use common sense

Electric drill An electric drill is a drilling machine that uses electricity to do power. It is a conventional product in power tools, and it is also the largest demand for power tools. The annual production and sales volume accounts for 35% of China's power tools.

How it works:
The motor rotor of the electromagnetic rotary or electromagnetic reciprocating small-capacity motor does magnetic field cutting work, drives the operating device through the transmission mechanism, drives the gear to increase the power of the drill, so that the drill scrapes the surface of the object and penetrates the object better.

Personal protection when using electric drill:
1 Wear a protective mask when working face up. Protective glasses.
2 The drill holder should be properly installed.
3 When the drill is in a hot state, pay attention to burning the skin.
4 When drilling a hand-held electric drill with Φ12mm or more, use a handgun drill with a side handle.
5 When working on a ladder or at a height, measures for falling from a height should be taken, and the ladder should be supported by ground personnel.

Precautions before operation:
1 Check whether the power cable connected to the site has sufficient capacity, is properly installed, and is connected to a leakage protector. Take measures to prevent cables from being damaged by rolling.
2 Check whether the drill is properly installed.
3 Check whether the switch on the drill is connected to the lock. Otherwise, it may cause personal injury.

Electric drill often overlooked operation methods:
1 Drilling holes on metal materials should first be used at the drilling position to punch up the hole.
2 Use a small drill bit to drill a large hole, and then use a large drill bit to drill a large hole.
3 If you need to drill into the metal for a long time, you can take certain cooling measures to keep the drill sharp.
4 Do not clean the drilling cuttings generated during drilling by hand.

Simple maintenance and inspection:
1 Check the use of dull or curved drill bits, will make the motor overload surface working disorder, and reduce the efficiency of the operation, therefore, if found such a situation, should immediately deal with the replacement.
Check the fastening screw of the electric drill body before use. If the screw is loose, it should be tightened immediately.
3 Check the carbon brush motor on the carbon brush is a consumable, once the wear exceeds the limit, the motor will fail, therefore, the worn carbon brush should be replaced immediately, in addition to the carbon brush must always keep clean state.
4 Grounding cable protection is an important measure to protect personal safety, so Class I appliances (metal enclosures) should always check that their shells should be well grounded.