Best Fully Ground Jobber Drill Bits of 2026
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Fully ground jobber drill bits are a premium quality option for those who demand precision and durability in their drilling tasks. These bits feature a fully ground surface, which ensures a more accurate and consistent hole diameter, as well as a longer lifespan compared to other types of drill bits. They are made from high-speed steel, which makes them ideal for drilling into harder materials such as metal, wood, and plastic. Fully ground jobber drill bits are available in a range of sizes, making them suitable for a variety of applications, from DIY projects to industrial settings.
At a Glance: Our Top Picks
Top 10 Fully Ground Jobber Drill Bits
Rocaris 8 Pack Titanium Drill Bits
The Rocaris Titanium Drill Bits set includes eight commonly used sizes, perfect for various drilling tasks. Made from high-speed steel with a titanium coating, these bits are designed to be sharp and efficient, helping you complete projects with ease. The fully ground spiral groove design minimizes friction and heat, allowing for quicker and cooler drilling. Additionally, the 135° split point ensures precise drilling without slipping, making it easier for you to achieve accurate results every time. This combination of features enhances your drilling experience, making it suitable for wood, plastic, and metal applications.
Narwhal 1/8" M35 Cobalt Drill Bits 13-Pack
The Narwhal Cobalt Drill Bits come in a 13-pack of 1/8-inch diameter bits, ideal for precise drilling with a flute length of 1-3/8 inches and a total length of 2.55 inches. These bits are made from M35 cobalt, containing 5% cobalt for enhanced durability and heat resistance, making them perfect for tough materials like stainless steel and cast iron. The 135-degree split point helps you start holes easily and keep them accurate when drilling repeatedly into hard metals. Plus, the set includes a sturdy plastic case to keep your bits organized and protected, so you can find and store them conveniently.
Biaungdo 0.3-1.6mm Mini Micro Drill Bit Set
The Biaungdo Mini Drill Bits set offers 20 high-speed steel drill bits in various sizes from 0.3mm to 1.5mm, giving you plenty of options for precise drilling tasks. Made from durable HSS steel, these bits resist rust and corrosion, ensuring they last through many projects. The set comes in a specially designed small box with individual slots for each bit, making it easy for you to organize, carry, and store the tools without losing any pieces. Whether you're working on jewelry, electronics, or small woodworking projects, this set provides the convenience and quality you need for detailed work.
SEDIANAS M35 Cobalt Drill Bit Set 15Pcs
The SEDIANAS Cobalt Drill Set offers a durable and efficient solution for drilling through tough materials. Made from M35 high-speed steel with 5% cobalt, these bits resist heat and stay sharp longer, so you spend less time replacing worn tools. The 135° split-point tip helps you start holes precisely without slipping, making your work faster and more accurate. With a fully ground twist design, the bits quickly clear debris and reduce friction, keeping the drill cooler and improving performance. This set comes in a variety of sizes, giving you the flexibility to handle different projects with ease.
GMTOOLS 29Pcs Drill Bit Set
The GMTOOLS 29Pcs Drill Bit Set is made of high-speed steel with black and gold oxide finish, featuring a 135°split point that allows for fast cutting and less pressure. Its self-centering design prevents walking, while the fully ground twist design decreases friction and brings metal shavings up and out of the hole. This set includes 29 sizes from 1/16 to 1/2 inch, and comes with a metal indexed case for storage.
amoolo Titanium 4341 HSS Drill Bit Set (60 pcs)
The amoolo Titanium Drill Bits set offers 60 pieces in six popular sizes, giving you plenty of options for your drilling needs. This variety means you can easily replace bits and tackle different projects without searching for extra tools. Made from premium 4341 high-speed steel with a titanium coating, these bits are tougher and last longer, resisting wear and tear. Their spiral groove design helps clear debris quickly, reducing heat and friction, so you get faster, cooler drilling. Plus, the 135° split point ensures precise drilling without slipping, so you don’t need a center punch. These bits work well on wood, soft metals, plastic, and aluminum, making them great for DIY and household tasks.
amoolo M35 1/4" Cobalt Drill Bit Set (10 Pcs)
The amoolo Cobalt Drill Bits come in a set of ten 1/4-inch bits, designed to fit most power drills. Made from M35 high-speed steel with 5% cobalt, these bits are tougher and last longer than regular drill bits, helping you tackle tough metals with ease. Their spiral groove design helps clear debris quickly, reducing heat and friction for faster, cooler drilling. The 135° split point tip keeps the bit steady and prevents slipping, so you can drill more accurately without needing a center punch. This set works well on hard metals like stainless steel and cast iron, plus softer materials like wood and plastic, making it versatile for many projects.
EASTPACE M35 Cobalt 13Pcs Drill Bit Set
The EASTPACE Cobalt Drill Set is designed with 5% cobalt steel, making it highly durable and wear-resistant. This means you can easily drill through tough materials like stainless steel, cast iron, and hardened steel without worrying about quick wear. Its 135° split point tip helps you start drilling precisely without slipping, giving you better control and accuracy. The fully ground finish allows chips and debris to clear quickly, speeding up your work and keeping the drill bit cooler. Plus, the set includes 13 different sizes stored in a handy indexed case, so you can easily find the right bit for any job.
AOKLIT Titanium Coated HSS Drill Bit Set 3-10mm, 8 Pack
The AOKLIT Titanium Drill Bits come in eight different sizes, so you always have the right bit for your project. Made from high-speed steel with a tough titanium coating, these bits stay sharp longer, saving you time and effort. They feature a spiral groove design that reduces friction and heat, helping you drill faster and cooler. Plus, the 135° split point and straight shank keep the bit steady and prevent slipping, letting you start holes quickly and accurately. If you want efficient, precise drilling with less hassle, this set is a great choice.
HIDOTOL Cobalt Drill Bit Set
The HIDOTOL Cobalt Drill Bit Set is a high-quality set of drill bits that are perfect for drilling into hard materials. Made from premium M35 Cobalt High Speed Steel, these drill bits are incredibly durable and wear-resistant, ensuring extended tool life compared to ordinary drill bits. The 135° split point and self-centering design make drilling precise and efficient, preventing walking and allowing for faster drilling. The fully ground twist design helps clear particles faster, reducing friction and heat for a cooler drilling performance. This set is ideal for cutting tough materials such as stainless steel, cast iron, high temperature alloy, titanium alloy, hard plastics, and woods. With its organized rose plastic case, the set is easy to store and access. Experience the satisfaction of precise and efficient drilling with the HIDOTOL Cobalt Drill Bit Set.
Frequently Asked Questions (FAQs)
1. What is a jobbers drill bit?
Jobber drills are the most widely used type of drill in industry for drilling cylindrical holes. Generally they come with two spiral flutes, straight (or parallel) shanks and an overall length which varies with diameter.
2. What is the difference between jobber and mechanics drill bits?
Determining if you should use a jobber bit vs a mechanics length (jobber) bit, is actually quite simple. A regular jobber bit is best used in softer materials such as wood, composite, and soft metals. For harder materials and hard metal drilling, a mechanics length drill bit is recommended as they are a stronger bit.
3. What is a jobber length bit?
A jobber drill bit has a long length compared to its diameter. The length of the flute is between 8-12 or 9-14 times the diameter of the drill, depending on the drill specifications. For example, a 1/2″ diameter jobber drill will be able to drill a 4-1/2″ deep hole because it is 9 times the diameter in length.
4. What are the 5 types of drill bits?
Drill bits are designed to drill holes in a variety of different common materials. These include different types of wood, metal, plastic, ceramic tile, porcelain and concrete.
During our fully ground jobber drill bit research, we found 24 fully ground jobber drill bit products and shortlisted 10 quality products. We collected and analyzed 46,759 customer reviews through our big data system to write the fully ground jobber drill bits list. We found that most customers choose fully ground jobber drill bits with an average price of $13.42.
The fully ground jobber drill bits are available for purchase. We have researched hundreds of brands and picked the top brands of fully ground jobber drill bits, including Rocaris, Narwhal, Biaungdo, SEDIANAS, GMTOOLS. The seller of top 1 product has received honest feedback from 586 consumers with an average rating of 4.9.
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.