Cordless screwdriver - a small purchase advice


As with many electrical appliances, the selection of cordless screwdrivers is huge. You can find out in detail how to find the right cordless screwdriver for your own purposes, and what criteria really matter when you buy it.

Basic criteria

First and foremost, always decide what you really want to use your cordless screwdriver for. Should it be used primarily for screwing or drilling? The table below shows the appropriate device type for different purposes.

applicationsuitable type
mainly screwing in and outCordless screwdriver with pure screwing function
Turning screws into hard materials, loosening tight nutsCordless Impact Wrench
easy drilling in soft materialCordless Drill
simple drilling work in the householdCordless Hammer

Advantages and disadvantages of combination devices

Always keep in mind that a cordless drill driver is always inferior to a drill. If you want or need to drill more frequently in the household, it makes more sense to purchase both devices separately.

A cordless screwdriver designed for screwdriving is usually much lighter and more manageable. A medium quality impact drill will help you drill holes easier, safer and more accurate than with the drill function of the cordless screwdriver.

Only if you drill very little, and perform only simple drilling work (no holes in brick walls), a combination device can also be worthwhile.

Features

For the performance features, you should pay particular attention to the following performance values:

  • voltage
  • torque
  • Idle speed
  • Battery capacity (at least 2 Ah are recommended)

For torque, you generally use 30 Nm for household applications, 50 Nm or more are more for professional use (or for impact wrenches).

Tips & Tricks

You can also compare devices by their wattage performance. If the wattage is not specified, you can easily calculate it by multiplying the voltage and amperage (not ampere-hours!) Together. The result is the total power in watts.


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