Here we examine the differences: Black Oxide Drill Bitsīlack Oxide Drill Bits are constructed by heating HSS bits to 950 degrees Fahrenheit. With HSS bits, there are three variances of compound blends, including black oxide, titanium, and cobalt.
BLACK OXIDE VS TITANIUM DRILL BITS UPGRADE
HHS is made for drilling into soft steels, wood, and plastic, Cobalt (HsCO) which is an upgrade from HSS that includes a 5-8% cobalt blend with the base material, ideal for drilling into stainless steel and harder steel, and Carbide (Carb), the hardest drill bit of all, used mainly for production drilling and not for hand drills or drill presses. There are three different choices of drill bits: High-speed steel (HSS)
BLACK OXIDE VS TITANIUM DRILL BITS FULL
And whether you are a DIY who works on casual projects or are a professional contractor who does heavier duty work, having the right kind of drill bits is crucial to the outcome of your project ( click for our full guide). When choosing a drill bit set, there are a couple of large factors to consider – What size holes you need to drill, and what materials you will be drilling. What to consider: Choosing a Drill Bit Set We may earn commission from our brand partners when purchasing products through our links. She has a wide range of knowledge and, because of this, has been able to contribute to a variety of different genres, including article and blog writing.Īs an editor, she has polished and perfected an array of pieces for diverse readerships and audiences. Coatings are mostly effective at high speed rates when the temperature is sufficient for them to increase efficiency.Anna Ryan is a writer, copywriter and editor. A very thin film of AL203 (Aluminium Oxide) is formed on the surface of the TiAlN which greatly increases the service life of the tool, withstanding higher temperatures especially when machining Cast Iron and tough steels. TiAlN (Black) – Titanium Aluminium Nitride : This coating has a greater hardness than TiN.
The following characteristics are associated with TiAlN coating: Coatings are for use at high speeds where the temperature is high enough to bring the coatings functional use into play. Lesser quality drills often imitate TiN coating, but more often this is purely cosmetic. TiN (Gold) – Titanium Nitride: A gold coloured film of Titanium Nitride with a hardness of approximately 85Rc is deposited on the tool which extends tool life by reducing friction and enables greater speeds and feeds. The following characteristics are associated with TiN coating: The additional benefits are for tool recognition as a cobalt drill. Bronze oxide has similar properties to black oxide including increased lubricity and tool wear, whilst reducing friction. The following characteristics are associated with Bronze Oxide coating:īronzed - Bronze Oxide: The industry standard colour for cobalt drill bits. Black oxide drills return better tool life expectancy than an uncoated / treated HSS drill bit. Black oxide coating provides heat resistance and lubricity to high-speed steel, as well as corrosion resistance.
The following characteristics are associated with a steam tempered black oxide coating:īlackened - Black Oxide: A low-cost black coating which is an industry standard for HSS drill bits. The following drill treatments and coatings are commonly used in the Performacut range. Many reduce friction, increase tool lifespan and improve tool performance. Different drill bit coatings have differing properties to help increase the performance of the cutting tool. Surface coatings on drill bits allow greater feeds and speeds when operating at higher temperatures, increasing tool life and therefore productivity sometimes by 4 or 5 times. Drill Bit Coatings - Surface Treatments on Drill Bits
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