| 摘要 |
<p>The invention deals with the installation of a water level - spirit level (2) on or inside a chassis (1) of a hand tool like manual grinding machines, electric drills, hedge shears and similar. The water level (2) is attached to the chassis (1) of the hand tool by glue or is screwed to it, while the simplest way is the installation of the water level - spirit level into an appropriate opening in the tool chassis, since this way it is protected against mechanical damage.</p> |
