Best Uncoated /Black Oxide Jobber Drill Bits of 2026
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Uncoated/Black Oxide Jobber Drill Bits are a popular choice for those who need to drill through a variety of materials. These bits are made from high-speed steel, which makes them durable and long-lasting. The uncoated version is perfect for drilling through softer materials like wood and plastics, while the black oxide-coated version is ideal for harder materials like metal. Both versions have a 135-degree split point design that ensures a precise and accurate start to the drilling process. These drill bits are available in a range of sizes, making them suitable for a wide variety of applications.
At a Glance: Our Top Picks
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Top 5 Uncoated /Black Oxide Jobber Drill Bits
Drill America Cobalt Drill Bit (Pack of 12)
The Drill America DWDCO30P12 #30 Cobalt Drill Bit (Pack of 12) from the DWDCO Series is made of cobalt steel with a gold oxide surface treatment. It has round shanks and spiral fluted tools that are ideal for drilling in tough, high tensile strength materials. The cobalt steel provides improved performance when cutting harder metals such as stainless steel or nickel alloys. The gold oxide surface treatment is thinner than black oxide but performs similarly to uncoated tools. The round shanks allow for use with a variety of toolholding systems.
Drill America GLBCO 5/64" Cobalt Drill Bit
The Drill America Cobalt Drill Bit is designed to tackle tough materials such as stainless steel, inconel, and titanium. Its 135° split point tip helps prevent the drill from slipping, ensuring precise drilling every time. With round shanks, this bit is compatible with various tool holding systems, providing versatility for your projects. The gold oxide finish offers a thinner surface treatment compared to black oxide, delivering similar performance to uncoated tools. This 6" drill bit is perfect for situations where extra length is needed to reach difficult areas.
Drill America GLBCOX65/32 Cobalt Extension Drill Bit
The Drill America Cobalt Drill is designed to handle tough materials like stainless steel, inconel, and titanium, making it ideal for heavy-duty projects. Its 135° split point tip helps you start drilling precisely without the bit slipping or wandering. The round shank design fits most tool holders, giving you flexibility with your equipment. Additionally, the gold oxide coating offers a durable surface that's similar in performance to uncoated tools, helping to extend the bit's life and maintain sharpness. Overall, this drill bit gives you reliable performance and added reach with its 6-inch length.
Drill America GLBCOX629 Cobalt Extension Drill Bit
The Drill America Cobalt Drill is designed to help you easily drill through tough metals like stainless steel, inconel, and titanium, which are usually hard to work with. It has a special 135° split point tip that keeps the drill steady and prevents it from slipping as you start drilling. The round shank design means it fits with many different tool holders, giving you flexibility in how you use it. Plus, it features a gold oxide coating that, while thinner than typical black oxide, still offers protection and performance similar to uncoated cobalt tools, helping the drill last longer during your projects.
Drill America GLBCO #7 Cobalt Drill Bit
The Drill America Cobalt Drill Bit is designed to tackle tough materials like stainless steel and titanium. Its 135° split point tip helps you drill accurately, preventing the bit from wandering off your mark. You’ll appreciate the round shank design, which allows you to use this bit with various tool holding systems, adding versatility to your toolbox. With a 6-inch length, this drill bit offers extra reach for deeper drilling tasks, making it a reliable choice for both professionals and DIY enthusiasts.
Frequently Asked Questions (FAQs)
1. Is black oxide good for drill bits?
Black Oxide Drill Bits – Basic and Inexpensive Black oxide bits last up to 50% longer than standard HSS bits. They offer superior durability and speed. Many pros find they get years of use from them and consider black oxide bits the best general-purpose drill bits you can buy.
2. Which drill bits are better titanium or black oxide?
Compared to titanium drill bits, both black oxide and cobalt drill bits are better. In addition to being non-corrosive, durable, and fast like titanium bits, cobalt and black oxide bits can be re-sharpened. While titanium drill bits have more or less the same uses as black oxide, the latter is much cheaper.
3. What is the difference between jobber and mechanics drill bits?
Jobber length drill bits are the most common and have a longer length compared to the diameter of the shaft. They are commonly used in softer materials such as wood, soft metals or composite. A mechanics length drill bit is a bit that has a shorter overall length, as well as a shorter flute length.
4. What is the difference between black oxide and gold oxide drill bits?
Black oxide bits have 50% longer life than standard high speed steel bits. Click here to see available sizes. Gold Oxide – Offers added speed and durability for general purpose drilling applications in wood, metal and plastic and drills 3x faster with speed helix. Click here to see available sizes.
During our uncoated /black oxide jobber drill bit research, we found 24 uncoated /black oxide jobber drill bit products and shortlisted 5 quality products. We collected and analyzed 9,969 customer reviews through our big data system to write the uncoated /black oxide jobber drill bits list. We found that most customers choose uncoated /black oxide jobber drill bits with an average price of $12.63.
The uncoated /black oxide jobber drill bits are available for purchase. We have researched hundreds of brands and picked the top brands of uncoated /black oxide jobber drill bits, including Drill America and more. The seller of top 1 product has received honest feedback from 384 consumers with an average rating of 4.7.
Harry Stack owns a small hardware store, his career landed him a depth of knowledge in categories such as tools, equipment, machinery and hardware. In his spare time, he usually repairs furniture, safes and appliances, and he knows how to make simple repairs to plumbing or electrical fixtures. His hobbies also include woodworking and fishing.