Electric drills are a regular product in power tools and also the most demanded product for power tools. The main specifications of electric drill bits are 4, 6, 8, 10, 13, 16, 19, 23, 32, 38, 49 mm etc. The figure refers to the maximum diameter of the electric drill bit for electric drilling on steel with tensile strength of 390 N/mm2. For non-ferrous metals, plastics and other materials, the maximum electric drill diameter may be 30-50% greater than the original specification.
What are the classifications of electric drill?
How to choose the right electric drill?
What should be considered when operating the electric drill?
What are the classifications of electric drill?
1. Hand electric drilling machine: The power is the smallest and the application area is limited to electric drilling wood and as an electric screwdriver. Some electric hand electric drills can be converted into special tools with many uses and models depending on the intended purpose.
2. Impact electric drill: The impact mechanism of impact electric drill has two types: dog tooth type and ball type. The ball impact electric drill consists of a movable plate, a fixed plate and a steel ball. The movable plate is threaded to the main shaft and has 12 steel balls; The fixed plate is fixed to the housing with pins and has 4-steel balls. Under the influence of thrust, the 12-steel balls roll along the 4-steel balls. The carbide electric drill bit produces a rotating impact movement that can drill holes in brittle materials such as bricks, blocks and concrete. Remove the pin so that the solid plate rotates with the movable plate without impact, which can be used as ordinary electric drill.
3. Impact electric drill (electric hammer): It can drill holes into a variety of hard materials and has the widest range of applications.
How to choose the right electric drill?
1. Selection of electric drill size. With increasing size of electric drill, its price also increases, and the size of electric drill for home use is generally 20 mm.
2. Selection of additional functions for electric drilling machines: The same model will have some additional functions. For example, if there is an R in the model, the exercise can be reversed. The advantage is that if the forward rotation fails, it can be switched to reverse rotation; An E means that the electric drill bit can be adjusted in speed and set to a low speed when no high speed is required.
3. If you see the advertising for the electric drill set in the furniture supermarket, do not overheat and buy it immediately to see if it is convenient.
What should be considered when operating the electric drill?
1. Wear a protective mask when working face up. Wear goggles to protect your eyes when electric drilling holes in cast iron.
2. The electric drill holder should be installed properly.
3. When the electric drill is working, the electric drill is in a hot state, so be sure to burn the skin.
4. When electric drilling with an electric hand electric drill with a diameter of F12mm or more, a pistol electric drill with side handle should be used.
5. When working on a ladder or at height, measures should be taken to fall from a great height, and the ladder should be supported by ground personnel.
Ningbo Deli Tool Co., Ltd., focuses on manufacturing electric drill bits. Here you will find the electric drill you need.Deli Tools as a hardware tools manufacturer, provide various types of electric drill.
