This content comes from @WhatWorth Buying APP, and the views only represent the author himself |Author: Twenty years of slavery
As an engineering man, he usually likes to toss and turn, from changing a light bulb at home to repair a toy, to changing some small parts for the car by himself. As the saying goes, if you want to do things well, you must first sharpen your tools, and the balcony cabinet at home is prepared with small half cabinet tools.
Recently, I was given an electric screw by my friend, and before placing an order, I carefully researched a small electric screwdriver, and I really learned a lot. Without looking closely, it is difficult to distinguish who is good and who is bad.
Without further ado, let’s start with a comparison table.
Comparison of parameters of 6 electric screwdrivers
The seemingly ordinary parameter table, as a hands-on party that is not familiar with electric screwdrivers, discuss your own ideas with everyone.
About mechanical properties
The first is the maximum torque and the minimum torque, these two parameters determine the use scenario of this screwdriver. The maximum torque is easy to understand, how much force there is. (In fact, it is not simple, after pondering, I found that there are two cases of hard torque and soft torque, usually the maximum torque we say is hard torque, that is, the torque on the hard surface). The practical significance of the minimum torque is that sometimes disassembling a laptop can also be used, and if the torque is too large, it is likely to make a miracle and force the explosion.
The difference in gear digits is actually the same as our gearbox, of course, the more gears, the better, and the smoother the switching.
The significance of the no-load speed indicator has not been well understood before. After asking Du Niang, I found that it seems that there is generally a ratio to the rated speed, the higher the no-load speed, the higher the rated speed? I still don’t understand why the speed should be so high. But probably understand, that is, the bigger the data, the better, let’s take a look.
About the battery
There is nothing to say about the battery capacity, of course, the more the merrier, although they all claim to be able to punch how many screws in a row, but using this is not used every day, occasionally use once out of the power is embarrassing.
There’s another problem that isn’t easy to focus on.
Whether the battery can be removed is very important! Very important! Very important!
There are several aspects that are more practical,
The first is the lighting, the advantage of having a lamp is that you don’t need to take a flashlight in the dark, after all, some places that need to be screwed, the light is not necessarily so good, such as the corner of the home or car. Ring lights have the best lighting effect, equivalent to shadowless lights, and the 3LED effect is also good. In contrast, 1 LED can only be said to be better than nothing.
This is followed by pressure sensing and induction braking. These two functions look similar, in fact, there is still an essential difference, pressure sensing is equivalent to a switch, the top of the screw with a little force will automatically turn, no need to press the switch. Personally, I feel that it is more practical
, the screw is tightened, the torque reaches the set value and stops by default, avoiding too much torque and causing the screw.
There is also a current sense function, which took a lot of time to understand. In human terms, it is that you have your own electric pen, which will warn you once you detect a current, which is suitable for brothers who like to disassemble and install electrical appliances.
1. As the industry leader, Bosch has advantages in technical performance, but it is not so big.
2. Putting aside the price and talking about performance is playing hooligans. In terms of power tools, the cost performance of domestic products is still quite prominent, and it is more flexible in terms of humanization.
3. Tools should still be easy to use, such as non-slip, such as resistant, such as replaceable batteries, just looking good is useless.
Attached are the various products mentioned in this article, Jingdong Portal, and attached is a personal one-sentence brief comment for your reference.