Tin-coated bits are suitable for drilling iron and steel as well as aluminum, magnesium, etc. Tin also provides the same benefits as black and bronze oxide. Titanium Nitride (Tin): A more expensive coating that increases the hardness of the bit and provides a thermal barrier resulting in increased production rates and longer tool life in harder materials. Black oxide is suitable for drilling iron and steel but is not recommended for drilling aluminum, magnesium, or similar materials.īronze Oxide: Bronze oxide increases tempering and stress relieving of the bit and is generally used alone to visually identify cobalt steel or with black oxide to identify better grades of high-speed steel. Black oxide adds corrosion protection, increases tempering and stress relieving of the bit, reduces galling and chip welding, and aids in retaining drilling lubricants. Coatings used on drill bits:īlack Oxide: The most economical coating. These are often the best drill bits for metal if you’re working exclusively with thin materials. Alloy steel drill bits are typically used in machine shops for cutting sheet metal of varying thicknesses.Diamond drill bits are ideal for cutting into glass, sea glass, fused glass, rocks and minerals.Bi-metal drill bits are useful for a range of materials like light metal, wood and PVC bi-metal drill bits cut fast and smooth with greatly reduced vibrations.These are often the best masonry drill bits for your project. Carbide-tipped drill bits stay very sharp over long periods of use and are used mainly for concrete, tile and masonry.When considering a cobalt drill bit vs titanium, cobalt bits are usually the best drill bits for stainless steel. They dissipate heat quickly and are highly resistant to abrasions, making them better for drilling into hard metals than black oxide- or titanium-coated drill bits. Cobalt drill bits are used for drilling hard metal and steel.These are best for hardwood, softwood, PVC, fiberglass and steel. Titanium-coated drill bits have reduced friction, require less effort and last longer than black oxide-coated bits.Black oxide-coated drill bits are more durable than standard HSS bits and the coating helps the drill bit resist rust. High-Speed Steel (HSS) drill bits are used for drilling wood, light metals, fiberglass and PVC.Materials and Finishesĭrill bits are often classified by the materials from which they are manufactured and the coatings applied to them. Not sure which drill bit you need or what you need in your toolbox? Keep reading for a rundown of the different types of drill bits you’re likely to come across. Sized for their diameter, drill bits are constructed in a range of styles to help with specific tasks. Drill bits made for steel, aluminum, copper, cast iron, sheet metal, fiberglass, brick, vinyl flooring, and more are also available. These include different types of wood, metal, plastic, ceramic tile, porcelain, and concrete. Drill bits are designed to drill holes in a variety of different common materials.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |