Mini-drill is an electric tool, which is often used for various purposes by homemade radio amateur. However, this device can be successfully used to perform other tasks in everyday life. Using this tool, you can drill various holes, cut many materials (plexiglass, plastic, wood, metal).
It is used for surface cleaning, for milling, engraving, sharpening. Using a mini drill, you can grind, trim and many other operations.
The device can operate both from a power supply network having a voltage of 220 V, and from a battery with a voltage of 12, 24, 36 V. Most often, a variety of interchangeable tools that can be inserted into a cam or collet chuck are included in the package of a mini-drill. These additions include drills of various sizes and shapes, grinding diamond wheels, abrasive, cutting, polishing carved disks. In addition, the set may include grinding drums, polishing stones and felts, grinding wheels, wire brushes, cutters and other elements.
If necessary, you can make nozzles on a mini-drill with your own hands. It is only necessary to attach the working body of the device to the metal rod, which can then be inserted into the collet or chuck. To do this, drill a hole in the middle of the nozzle or glue it to the surface of another suitable device available in the arsenal of the master.
The use of a
flexible shaft makes it possible to hold only the working body, with which various tasks are performed.
The mini-drill is equipped with either a set of replaceable collets, in which the nozzles are clamped, or a miniature cam chuck, which serves for the same purpose. The latter is much more convenient, since it allows the use of various nozzle diameters with shanks.
Many craftsmen manage to make a mini-drill with their own hands. To do this, they use a miniature electric motor left over from old household appliances, for example, from an electric toothbrush or tape recorder. It is important to be able to fix a cartridge or collet on the drive shaft. This mechanism is absolutely easy to do if a lathe is available .
However, home-made devices are not so convenient and practical than devices manufactured industrially.
Today you can buy a mini-drill of many famous companies, and this tool is not so expensive. At the same time, it is very convenient and reliable. In the modern market of electrical appliances, the leading position in the production of mini-drills is occupied by Dremel, which is a subsidiary of Bosch (Bosch).
By the way, because of the name of the manufacturer, this tool is often called "dremel". Prices for it depend on the configuration and capacity. A simple “mini” drill will cost about one and a half thousand Russian rubles. A quite good functional model can be bought for three to four thousand rubles.