Exercising care around pipes and cables
Before drilling in a wall, always establish whether pipes and cables run where you plan to drill. For this purpose we recommend using the metal finder from BOSCH.

Deep, dust-free holes for fixings
When using plastic fixings you should make the hole slightly deeper than the length of the fixing. Ten millimetres is a good security reserve in the event that drilling dust should remain in the fixing hole. You can blow into the hole yourself. When doing so, keep your eyes closed - or simply use the dust blower from BOSCH. If you prefer to remove the dust with suction, use your vacuum cleaner.

Drill more lightly into metal
When drilling flat surfaces like metal, it is easy for the drill bit to slide from the desired spot, preventing you from starting the hole where you want it. To keep this from happening, manually make a small hole in the metal before drilling. The most common tool for this task is called a punch, a metal rod that has a flat surface on one end (for striking with a hammer), and a point on the other end. After making the hole, it will be much easier for you to get off to a clean start with the drill. When drilling in very hard material, you may wish to start drilling the hole with a thin drill bit and then finish the hole with a drill bit of the desired diameter. 

Hold the drill properly
Always hold the impact drill straight and apply pressure perpendicularly to the surface of the wall or object. If you use the auxiliary handle, your job will be easier because the handle gives you better control whilst drilling. The drilling angle controller  makes it even easier. For example, you can place this device directly onto the work piece and then easily drill a hole that is exactly vertical. But if you would like to drill at an angle, you will do this with equal precision. You can adjust the controller to drill at an angle as narrow as 15 degrees.

Sensitive acrylic glass
When drilling in acrylic glass, always drill at low speed. This material is very sensitive to heat and may otherwise melt. 

Plaster for tiles
Here is an old craftsman's trick: Drill bits tend to slide from smooth tiles, but you can prevent this by placing adhesive plaster or a piece of tape onto the spot where you plan to drill. 

Drive screws with the right bit
If you use the improper bits, you will quickly destroy the screw head. For this reason, it is important to choose not only the proper bit shape (slotted, cross head, Allen, or Torx), but also the proper bit size.