Do not buy poor quality drill bits because of greed for small and cheap. It is recommended to buy some well-known brands or buy from some trusted purchasers. This is especially true for Amber colors, please purchase with caution. The golden drill bit is either the best or the coloring is deceptive. Black rolled drill bits are generally the worst drill bit. White fully ground drill bits generally do not disappoint and are generally value for money. 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. If you buy a rolled drill bit, you must at least buy the quality of hss4341. What are Drill Bits Drill bits are designed to drill holes in a variety of different common materials. Heygo has centre drill, twist drill, carbide drill, taper drill also deep hole drill etc. So in summary, color cannot be used as the only criterion for judging the quality of drill bits.įirst of all, the best is of course to choose a fully ground drill. From the usage, there are Center drill, twist drill, carbide drill, oil drill, deep hole drill, drill reamer, taper drill, cylindrical drill, cone drill, triangle drill, etc. Of course, it is not ruled out that for profit, the surface of ordinary drill bit is processed into yellow-brown. The material is generally M35, which is wear-resistant and durable. As for the yellow-brown (Amber) cobalt-containing drill bits, they are generally very good quality drill bits. In addition, titanium-plated drill bits are generally used for decoration, and they look golden. The drill bit is very easy to wear and is not durable at all. Their quality can be said to be very poor. However, some businesses only do surface treatment to make it black. The black drill bit is processed in ammonia and water vapor to improve the durability of the drill bit. Generally, the drill bits are white ones, and the quality is not bad. According to the material, the drill bit is made of high-speed steel, generally divided into Hss4241, Hss4341, Hss6542(M2), M35, M42, among which the quality of Hss4241 is the most general and the quality of M35 is the best. The quality of fully ground drill bits is better than that of rolling. On the surface, there is no difference.Ībout the surface finish of the drill bitĪccording to the production process, drill bits are divided into rolled and fully ground drill bits. After all, even if the drill bit is of poor quality, it is coated with a white or yellowish-brown coating. If you want to differentiate the quality of the drill bit from the surface finish, then you can only use it as a reference. Sometimes the color is just a surface treatment, sometimes the color is because of the difference in processing technology. In most cases, the color has nothing representative with the quality of the drill bit, and they cannot be equated. For most do-it-yourselfers, there will likely come a time when youll have to drill a hole through a piece of metal.
First, let me explain the difference between the quality and color of the drill bits.
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