A hand drill is a tool designedfor drilling holes in various materials: wood, metal, etc. There is a drill in this unit, which is clamped by a special cartridge. Today, the industry produces various kinds of drills. This article describes these differences, allowing you to determine which tool is right for you.
A hand drill was invented back in the Neolithic period.Originally it looked like a combination of ancient instruments. By turning the bow, a drill was rotated, which was pressed by the hand from above. So they got fire, made the necessary tools, processed stone, wood, etc.
В конце девятнадцатого века, после «укрощения» electricity, an electric drill was invented. To date, the industry produces a mechanical, wire (network), as well as a battery tool.
Manual mechanical drill is designed fordrilling holes not exceeding 10 mm. It consists of a spindle on which small gears are mounted in a certain manner, and handles that drive the mechanism.
What is different from the other two-speed manualdrill? When drilling, its "driving" gear is connected to either another gear wheel or a bevel gear. Depending on the type of connection, the number of revolutions varies. This type of drills is widely used in production. This tool, which has two modes of drilling, allows you to choose the speed to work with different surfaces. For example, a hand drill with a feather drill will make a hole in the wood of 30 mm, and with sufficient torque it allows for holes in brick or concrete walls.
Manual drill - an indispensable assistant for those whois engaged in construction or repair. It will easily screw up or unscrew screws or screws, mix shpatlevku, paint, etc. Therefore, a person who buys a two-speed tool, gets a whole "team" of assistants. This is primarily, of course, the drill itself, as well as a perforator, a mixer, a screwdriver, etc.
A hand drill is one of the most necessary things ineveryday life of a master craftsman. With its help, you can easily hang a picture or shelf on the wall, nail the cornice for curtains, drive the dowel into a brick or concrete wall, make small repairs to home furniture. But this is not yet a complete list of all those works on the house, an irreplaceable assistant will help to cope with them.
1. Before drilling the walls, be sure to check for hidden communications, such as electrical wires or water pipes. You can make it easier for yourself by using a metal detector.
2. Blow the resulting hole from the dust. For this, you can use a vacuum cleaner or a special vacuum. A usual rubber pear will help to get rid of dust.
3. Remember that the diameter of the hole drilled in concrete or brick is always greater than the diameter of the drill used in the work.
