Share basic literacy on how to use lithium electric drills

What we often call a "rechargeable lithium electric drill" is a portable battery-powered DC power tool. The shape is basically like a QIANG handle, which is easy to hold. By holding various types of drill bits at the front, various functions can be realized, including drilling holes in various materials and screwdrivers for various types of screws.

The front part of the lithium electric drill is equipped with a three-jaw universal chuck. This is a universal accessory and can be easily replaced if damaged. Parameters are marked on the side of the collet. For example, 0.8-10mm 3/8 24UNF is a commonly used 10mm drill chuck. 0.8-10mm indicates the clamping range, 3/8 is the thread diameter, 24 is the number of threads, UN is the American standard, and F is fine. Check the parameters carefully when purchasing and you will be able to install it smoothly.

When installing the workpiece (drill bit), first loosen the three claws by turning counterclockwise, put the workpiece (drill bit) in, and then tighten the chuck clockwise. The brushless motor allows direct tightening with one hand. After clamping, it is best to check to see if the workpiece is concentric.

It should be noted that most domestic lithium electric drills do not have impact functions, so it is almost impossible to drill deep holes in concrete walls. If you have an illusion of drilling in, you may have penetrated the putty coating layer on the wall. Yes, the actual bottom concrete was not driven in.

Behind the drill chuck is an annular rotating cup engraved with numbers and symbols, called a torque adjustment ring. When you twist it, it makes a clicking sound. Set different clutch torques for the electric drill by twisting it to ensure that when the screws are tightened, the clutch will automatically start after the rotation torque reaches the set value to avoid damaging the screws.

The gear on the adjusting ring, the larger the number, the greater the torque. The maximum gear is a drill bit mark. When this gear is selected, the clutch does not work, so you need to adjust it to this gear when drilling. When installing furniture, screw Use 3-4 screws. On the top of the lithium electric drill, there is a triangular point indicator behind the torque adjustment ring, indicating the current gear.

The top of the lithium electric drill is generally designed with a push block for high/low speed selection. It is used to select whether the working speed of the electric drill is high speed above 1000r/min or low speed around 500r/min. Push the button toward the chuck for high speed, and push it back for low speed. If the lithium electric drill does not have this dial, we call it a single-speed electric drill, otherwise it is called a two-speed electric drill.

The trigger on the lower handle is the switch of the lithium electric drill. Press the switch to start the electric drill. Depending on the depth of pressing, the motor will output different speeds. The difference here from the high and low speed dial is that the dial determines the operating speed of the whole machine, while the start switch mainly adjusts the speed when you use it. There is also a push block above the switch that can be moved left and right to select forward and reverse rotation of the electric drill. Turning to the left (pressing the right) is forward rotation, and vice versa is reverse rotation. Some forward and reverse switches are umbrella-shaped dial buttons. The principle is the same: turn it to the left and turn it forward.

Finally, the birth of tools marked the beginning of mankind's mastery of production capabilities and the entry into the civilized era. Nowadays, there are many types of power tools, especially lithium-powered tools, with varying prices. Regular manufacturers have strict requirements on lithium batteries, motors, and assembly processes. Compared with cheaper products, you get what you pay for. I hope this article can be helpful to friends who have questions about purchasing lithium electric drills.