Mini-drill – the electrically operated hand tool intended for performance of micro works with the most various materials: stone, tree, plastic, metal, tile. With its help you will easily cope with grinding, cutting, drilling of small openings, milling, polishing, engraving, sharpening. Quite often use mini-drill and in the course of restoration of jewelry and ancient products. The second name of mini-drill – the engraver.
Choice of mini-drill
The mini-drill, as well as the majority of electric tools, can work both from network, and from the accumulator. Before deciding what option suits you, think in what conditions you are going to use this adaptation. In the presence of continuous access to the power supply network, safely choose the first option. If you are going to work with mini-drill in the open air or in rooms with lack of sockets, give preference to the accumulator tool.
One of the most important parameters of the engraver is rotational speed. Its size at various devices can vary within 15-35 thousand revolutions per minute. Mini-drills with the minimum values of rotational speed are intended mainly for polish and grinding. If the device is necessary for you for sharpening and cutting, choose model with the maximum quantity of turns.
In the modern market of electric tools you can meet the ordinary engravers with the constant speed of rotation reducing tension at the engine in the course of work and therefore not intended for performance of the operations demanding high accuracy and the mini-drills with adjustable speed allowing to change the number of revolutions per minute as required. Refuse purchase of too little and easy engraver what convenient he would not seem to you. The fact is that compact tools are deprived of the cooling system therefore very quickly overheat. In the course of use of such mini-drill you should stop work each several minutes. As the most popular and reliable producers of mini-drills are considered: "Bison", "Calibre", Energomash, Sturm, Dremel, Ryobi.
Nozzles for mini-drill
Models in which package the flexible shaft and bracket for suspension are included not only are more convenient in work. Also these elements provide faster and high-quality engine cooling of the tool. Before buying mini-drill, make sure available of set of various functions of nozzles intended for performance. For grinding, sharpenings of saws and alignment of surfaces are intended the nozzles made of material of various density in the form of abrasive wheels and stones. For thread and milling of such materials as, stone, tree and metal, nozzles in the form of sharp or, on the contrary, the rounded-off cones and wire brushes will approach. For cleaning and polish it is better to use nozzles disks and bristle brushes with various quantity of fibers.