A hand drill is a tool designed for drilling holes in various materials: wood, metal, etc. The drill works in this unit, which is clamped by a special chuck. Today, the industry produces various types of drills. This article describes these differences, allowing you to determine which tool is right for you.
A bit of history
Hand drill invented in the Neolithic era. Initially, it looked like a combination of ancient instruments. Due to the rotation of the bow, the drill rotated, which was pressed by the hand from above. So they made fire, made the necessary tools, processed stone, wood, etc.
At the end of the nineteenth century, after the "taming" of electricity, an electric drill was invented . Today, the industry produces mechanical, wire (network), as well as cordless tools.
Mechanical hand drill designed for drilling holes not exceeding 10 mm. It consists of a spindle, on which small gear wheels are installed in a certain way, and a handle that drives the mechanism.
How is a two-speed hand drill different from the rest? When drilling, its “driving” gear is connected either to another gear or to a bevel gear. Depending on the type of connection, the number of revolutions varies. This type of drill is widely used in production. This tool, which has two drilling modes, allows you to choose the speed for working with various surfaces. For example, a hand drill with a pen drill will make a hole in the wood of 30 mm, and with sufficient torque, it allows you to make holes in brick or concrete walls.
Benefits
Hand drill - an indispensable tool for those involved in the construction or repair. She can easily screw or unscrew screws or self-tapping screws, knead putty, paint, etc. Therefore, a person acquiring a two-speed tool acquires a whole “team” of assistants. This is, first of all, of course, the drill itself, as well as a hammer drill, mixer, screwdriver, etc.
Scope in everyday life
A hand drill is one of the most necessary things in the everyday life of a home master. With its help, you can easily hang a picture or a shelf on a wall, nail a curtain rod, drive a dowel into a brick or concrete wall, and carry out a small repair of home furniture. But this is not a complete list of all those household chores that an indispensable assistant will help to cope with.
Additionally
1. Before drilling the walls, do not forget to check the presence of communications hidden in it, for example, electric wires or water pipes. You can ease your task by using a metal detector.
2. Blow out the resulting dust hole. To do this, you can use a vacuum cleaner or a special vacuum cleaner. An ordinary rubber bulb will help get rid of dust.
3. Remember that the diameter of the hole drilled in concrete or brick is always larger than the diameter of the drill used in the work.