Schmith metal drills - for precise and fast drilling
Metal drills are cutting accessories, used for fastdrilling of precise holes in various types of metals with different degrees of hardness, such as steel or aluminum, for example. They are used in cooperation with drills, screwdrivers and bench drills, depending on the size of the hole to be drilled and the type of drill bit used for drilling.
Drills for steel differ in their construction, material of manufacture and strength from drills for wood or concrete. The different types of drill bits can be recognized by NWK (Polish standard) or DIN (German standard) standards, which define the range of diameters, lengths, material of workmanship, shape, angle of sharpening and other parameters. The basic designations of drill bits are as follows:
- NWKa - DIN338 - drill bits with cylindrical shank
- NWKb - DIN340 - long drills with cylindrical shank
- NWKc - DIN345 - drill bits with conical shank (Morse taper)
- NWKp - DIN1869 - extra long drills with cylindrical shank
- NWKy - DIN341 - extra long drill bits with conical shank (Morse taper)
What to pay attention to when choosing drill bits for metal?
When choosing the right drill for working with different types of metals, it is worth paying attention to several characteristics that distinguish different metal drill bits. Due to the characteristic features, it is worth paying attention to:
- Material - professional metal drills are made of durable and long-lasting materials, such as carbide or high-speed steel. In addition, drills suitable for drilling in hard and very hard metals are characterized by a few percent addition of cobalt or titanium, which increase the resistance of tools and high temperatures.
- Tip angle - the characteristic angle of the blade, which is usually 118 degrees or 135 degrees, is a characteristic of metal drill bits. The tip angle corresponds to the efficiency and speed of cutting.
- Chuck - depending on the type of drill, it can be equipped with a cylindrical chuck, also called cylindrical, or a conical chuck, called Morse taper.
Types of drill bits for steel
There are several types of drill bits, distinguished by the features of their construction and material of manufacture. The basic division is as follows:
- Universal drillsfor metal - they are mainly used for hobby, home use, for drilling in various types of metals and plastics. Universal drills are characterized by high economy.
- HSS high speed steel drills for metal - that is, from High Speed Steel. This is the most popular type of metal drill bits, which excel at creating holes in materials such as steel, sheet metal, cast iron, aluminum, titanium or graphite. They can also be successfully used to work with plastics and other materials. They are characterized by high durability and precision, as well as very fast drilling.
- Cobalt drills for metal - this type of drill bits is characterized by very high durability, which is why they are mainly used in industrial applications. It is perfect for drilling holes in both soft and hard metals.
- Titanium metal drills - these, like cobalt drills, are also very hard drills designed for professional applications. They are excellent for drilling in very hard materials, such as bronze and cast iron. In addition, the titanium coating prevents chips of the material being cut from sticking to the surface of the drill bit.
- Cone drills for metal - also known as step drills, are accessories used for drilling holes of different diameters or enlarging holes, mainly used when working with various types of metal sheets. Tapered drills are equipped with precise gauges that allow you to conveniently drill holes of the desired diameter.
- Bi-metal holes awsfor metal - these are not typical drills, but accessories used for drilling holes in metal sheets and other thin metal parts. Bi-metal holesaws are very often used during renovation and construction work, as they allow drilling holes in wood, metal, plastics and other raw materials.
Schmith metal drills - durable cutting tools
Our metal drill bits are indispensable accessories for drilling holes in metals of different hardness levels - at Schmith, we make sure that our products stand out for their high durability and efficiency. Our range of cutting tools is the certainty of a solidly done job!
Bet on Schmith metal drill bits! We invite you to shop!