Technical Information on Electric Tools - Precautions for Using Electric Hand Drills

The electric hand drill is a small volume of electric tools, such as drilling screws, household and industrial tools, with a wide range of applications and high utilization rate. Although the electric hand drill is small in size, it is always a tool that uses electricity. When we use it, we also need to pay attention to the following:

Electric hand drill

The operator must comply with safety operation rules and must not operate in violation of regulations,

2. Keep the working area clean

Wear work clothes when working, wear safety masks when working face up, and wear protective glasses when drilling on pig iron castings to protect your eyes

4. Do not use electric drills in rain, excessive humidity, or places with flammable liquids or gases

4. Electric hand drills are suitable for drilling on metals, wood, plastics, and other materials that require very little force. The electric hand drill has no impact function, so it cannot drill into walls

6. The drill bit holder should be properly installed

Before using the electric drill, confirm that the switch on the drill is in the lock state, otherwise the drill will unexpectedly rotate immediately when the plug is inserted into the power socket. Which may result in a risk of personal injury

Before use, check whether the mounting screws on the electric drill body are firm. If the screws are found to be loose, they need to be tightened immediately, otherwise the electric drill may fail

Before using the electric drill, idle it for 1 min to check whether the transmission part operates normally.

10. If there is a ground wire in the rubber cord, it needs to be firmly connected to the chassis

The electric drill must be kept clean and unblocked. It is necessary to regularly remove dust and oil stains, and pay attention to preventing debris such as iron filings from entering the drill and damaging parts

When drilling with a hand electric drill, it is not advisable to use excessive force to prevent the hand electric drill from being overloaded

13. When the rotation speed of the electric hand drill decreases significantly, it is necessary to immediately grasp the electric hand drill to reduce the pressure of releasing it. If the rotation suddenly stops, the power supply of the electric hand drill must be immediately cut off

14. When installing the drill, it is not allowed to hit the electric hand drill with a hammer or other metal products

When holding a hand electric drill, you must hold the handle of the tool, and do not pull the soft wire while moving the hand electric drill. It is necessary to prevent the soft wire from being scratched, cut, or crushed

16. The power cord should be kept away from wire sources, oil, and sharp objects. If the power cord is damaged, it should be replaced in a timely manner. Do not contact exposed conductors to prevent electric shock

17. If the workplace is located away from the power source. When extending cables, it is necessary to use extension cables with sufficient capacity and qualified installation. If the extension cables pass through pedestrian walkways, they should be elevated or measures should be taken to prevent cable damage due to rolling

Before the smaller workpiece is drilled, it must be firmly fixed, so as to ensure that the workpiece used during drilling does not rotate with the drill bit. Ensure the safety of operators

"Some electric drills have adjustable speeds, some also have the function of reverse rotation, and in addition, electric drills can be used with many accessories. Therefore, when using electric drills, it is necessary to use them according to the original electric drill and understand some precautions. For example, the operation methods for changing the direction of rotation of the electric drill are as follows. If the start and stop switch is pressed and held, the direction of rotation cannot be changed. Using the forward and reverse switches can change the direction of rotation of the electric drill,", Forward rotation is suitable for normal drilling and tightening of screws, while reverse rotation is suitable for loosening and turning out screws and nuts,

When drilling, it is necessary to select corresponding electric drill specifications for different drilling diameters to fully exploit the performance of each specification of electric drill and avoid unnecessary overloading and damage to the electric drill

21. During operation, use a lever to pressurize, and do not directly press on it with your body

During operation, it is necessary to start before contacting the workpiece. When drilling thin workpieces, it is necessary to pad them flat and compact them. When drilling oblique holes, it is necessary to prevent sliding drilling. When drilling, it is necessary to avoid concrete reinforcement

23. Nowadays, electric hand drills have a speed regulation function. Small drills use high rotational speeds, and the pressure on the hands should be lower. Otherwise, it is easy to break,

Drill bits with a diameter of 24, 3mm or more should have a low rotational speed and high pressure. If a high rotational speed is used, the drill head will turn red, resulting in a lack of rigidity,

25. When using a hand-held electric drill with a diameter of more than 12mm to drill holes, it is necessary to use a side handle hand gun drill,

26. When drilling large holes, use a small drill bit to drill them in advance, and then use a large drill bit to drill holes

27. When drilling on metal for a long time, certain cooling measures can be taken to maintain the sharpness of the drill bit

28. The drill bit is blunt, and it needs to be polished in a timely manner. Always keep the drill bit sharp

29. When drilling holes in metal materials, it is necessary to first drill the nail sample at the position to be drilled for punching

The drilling cuttings generated during drilling are strictly prohibited from being cleaned directly by hand, and special tools should be used to clean the cuttings

31. The drill bit is in a hot state during operation, and attention should be paid to avoid burning the skin

32. It is necessary to take measures to prevent falling from heights when working on ladders or working at heights

33. When not in use, electric drills should be placed in a dry place and out of the reach of children

34. When replacing accessories, be sure to disconnect the power supply before replacing