How to Choose the Best Metal Drill to Drill and Other Tools

Those who perform construction and installation work, the drill will be the best assistant. Inserted in a drill or other machine tools, it is accurate drill hole or tighten the screws.

In total, there are 4 types of drills for metal:

• Spiral - versatile, suitable for any kind of holes;
• Tapered - characterized by a smooth conical shape, suitable for holes of any diameter. They need constant supervision of the master;
• Stepped - also conical, but do hole drilling process a certain diameter easier due to the presence of stages of different sizes;
• Crown (circular cutter) - for holes from 12 to 150 mm, the laminates. Characterized by low power cutting roughness give high performance, which is impossible to achieve other types of drills.

What material is the best?

To use the drill in everyday life is better to choose one drill for metal with different densities. Selecting a tool for working with aluminum and steel is guided by the price. In search of quality tools, refer to the products of famous brands. They are made of solid steel and are solid-rolled. BTW, you can select the wide drill bit or drill bit collet at Banggood for high quality and reasonable prices.

Most drills are characterized by high quality marking of the USSR.

• HSS-R and HSS-G - suitable for use with cast alloy, carbon steel strength up to 900 N / mm2, aluminum, nickel silver, graphite, bronze or brass alloy, and iron;
• HSS-G Co 5 - for metal strength up to 1110 N / mm2, suitable for drilling stainless steel, carbon steel, alloy, not heat-resistant, heat-resistant steel;
• HSS-GTiAN / TiN - drills with titanium-nitride-coated aluminum, are suitable for use with cast iron, brass, nickel silver and bronze, cast steel.

Also, there are drills from cobalt (one of the most expensive and durable types of drills are suitable for drilling hard metals) and solid metal alloy (suitable for metal of great thickness have unilateral acute angle sharpening).