Drills are one of the most versatile tools for repairing one or another level of complexity. Driving once again into the search line - drills to buy ukraine , you can make a mistake by choosing an unsuitable product for you, because first you need explore all possible nuances. TORG PRO decided to pay attention to this issue.
General recommendations:
A quality sample should not have any scratches, dents, bends, etc. In addition, you need to check whether the cutting edges are well sharpened, and along the entire length. For a particular type of work, drills of various sizes, lengths and diameters are used, including various materials.
Drills for metal:
These drills are very versatile. They allow you to drill a hole in steels, cast irons, non-ferrous metals, cermets. Twist drills are the most widespread of all, representing a cylindrical rod with two helical grooves with an angle of 10-45 ° to the cutting axis of the tool. The highest quality drills for metal are made from alloy and high-speed steels
Drills for concrete:
Since the concrete is quite strong, it is rather difficult to drill a hole, therefore drills with soldered tungsten and cobalt alloys are used. There are also drills with modified alloy of these metals. When processing concrete, drills with soft or medium soft tips are used. But in the case of granite, or tiles, drills with a medium or high hardness are used. Particular attention should be paid to the latter - during production, a series of teeth and re-sharpening are performed.
Drills for wood:
This type, intended for wood processing, is represented by the widest selection. However, special attention should be paid to the main three types of wood drills:
1) Twist drills are a sharpened metal spiral for creating holes with a diameter in the range of 8-28 mm, but quite deep (from 300 to 600 mm). This type is well removed from the hole, due to its properties.
2) Pen drills are intended for holes with a shallow depth, as well as a diameter of 10 mm, so you cannot drill through.
3) Cylindrical drills. They are widely used for producing neat holes with large diameters from 26 mm and above. In addition, they have increased processing efficiency.
