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Masonry drill bit for tiles8/19/2023 ![]() SG coated: Silicone multilayer is a special coating used for extremely dense metals.TiAIN coated: Titanium aluminum nitrate offers high-speed resistance to heat and abrasion.TiN coated: Titanium nitrate coating allows extended wear for drilling hard metals.Black oxide: This coating helps retain lubricants and works well to prevent rust.Manufacturers will coat their bits with special additives to improve performance, extend product life and make a worker’s job easier. Often, it’s not sufficient to build drill bits from certain metals alone. Solid carbide bits work well on nonferrous metals, and they do a great job on abrasive surfaces such as fiberglass. This means the entire bit has carbide construction, not just the tip. Solid carbide: For maximum duty drilling into the hardest materials, it pays to invest in solid carbide bits.Carbide tip bits are popular for masonry, concrete and tile drilling. Carbide is also expensive, so tool manufacturers often use HSS for the shank, flutes and leads but add a piece of carbide to the point. Carbide tipped: Carbide is an extremely strong metal that withstands enormous force.You will typically see cobalt bits marked HSS Co, which guarantees you a quality drill for challenging surfaces. Cobalt: Tougher work like drilling into stainless steel needs a tougher bit material to withstand the resistance and generated heat.HSS bits contain carbon steel with some additives of chromium and vanadium. Suitable materials are wood, soft metals and plastics. High speed steel (HSS): High-speed steel is widely used for general purpose drilling.Here are the four materials frequently used in making drill bits: What really separates the different bits is their actual metal composition. With few exceptions, metal bits are the most practical choice for every surface including wood, concrete, tile, glass and metal surfaces, as well. There are also different materials used to make the types of drill bits used for concrete, brick or tile.Īlmost all drill bits are made of metal. The types of drill bits for wood have different material composition than the types of drill bits for metal. It’s critical to use the right bit material designed and intended for the project material you are working. Typical point angles are 90° for fast cutting, 118° for general drilling and 135° for slower boring into hard materials.Īs with drill shapes, there are many different drill bit materials. This takes into account terms like screw point, conventional point and split point, but the most important feature is the drill point angle. There are many configurations to drill points. Point: This is the business end of your drill bit. ![]() Flutes and leads are mostly relevant to twist drill bits, which are far and wide the most common bit you’ll ever use. Leads are the outer face that governs the hole’s diameter and ensures the bit stays on a true path. Flute and lead: Flutes are the recessed or inner groove portion of the bit’s forward section or cutting part.Typically, shank length is less than the flute and lead portion. Shanks can be smooth or hex-shaped depending on how much torque you need. ![]() It’s the part that your electric drill or hand-brace grips.
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