50 yuan to find a master to punch holes is not as good as spending more than 300 to buy an electric hammer

People who often tinker with their homes at home will inevitably encounter a problem, that is, "punching". Install monitoring, install curtain brackets, install storage racks, install TV racks, etc., as long as you want to transform something basically can not be separated from fixed.

In particular, the storage class, basically have to be on the wall, in addition to the "nail-free installation" that people have been worried about, that is, glue. The most secure, of course, is the expansion screw. The characteristic of the expansion screw is that when it is screwed, the outside sleeve will be "exploded" to be screwed, so that it can be supported inside and play a very firm fixing role.

Even if it is a plastic material, the material selection is as strong as the reliable point, and it is more stable and practical than the adhesive. If you want to put the expansion screw in, you need to make a hole, and the most practical and efficient tool for making a hole is an electric hammer.

Hand drill is mainly on the screw and drill wood, at most drill a stainless steel.
The corresponding range of work capacity of the three is as follows: so an electric hammer + a wireless lithium electric hand drill is the standard equipment of the home, the hand drill on the screw drill wood/stainless steel, the electric hammer drill wall, each responsible for their own field.

Ordinary family drilling diameter is not large, generally 6mm and 8mm, 10mm and 12mm are less, the long-term working performance and efficiency of the machine requirements are lower, so there is a "safe clutch" protection safety, 26 cylinders, 800W or so enough to use.