Best Iron Jobber Drill Bits of 2026

The BOSCH CO14B 14-Piece Cobalt M42 Metal Drill Bit Set is designed for durability and high heat resistance. It contains upgraded M42 Cobalt jobber-length bits that can handle stainless steel, cast iron, titanium, light-gauge metal and aluminum. The set includes 14 drill bits with sizes ranging from 1/16" to 1/2". With a thick web-helix design and surface-hardened tip, these bits offer additional stability in tough applications and can penetrate tough abrasive materials.

The Pro Edge Cobalt Drill Bits set offers 13 different sizes, ranging from 1/16" to 1/4", letting you pick the perfect bit for your project with precision. Made from M35 high-speed steel with 5% cobalt, these bits are built to last much longer than standard bits, saving you time and money on replacements. Their 135-degree split point design makes drilling into tough materials like stainless steel and cast iron easier by reducing the effort needed and preventing slipping. Plus, the twist design quickly clears out debris, helping you work faster and more accurately on various materials including wood and plastic.

The MACXCOIP Cobalt Drill Bit Set is a 13-piece set of M35 high-speed steel bits designed for hardened metals, stainless steel, cast iron, and wooden plastics. The 135-degree point tip and twist design allow for faster cutting and self-centering to prevent walk-off. The set includes a drill case with size indexes for easy storage and sorting.

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.

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.

The EFFICERE 8-Piece Premium Large Drill Bit Set features cobalt high speed steel construction, dual coating finish, 135° split point design, and a 1/2 inch reduced shank with tri-flatted end. This set includes 8 pieces of 6” long silver & deming drill bits in a heavy-duty aluminum storage case, which can drill holes in various materials with increased cutting speed and self-centering feature. The dual coating finish holds up lubricant better for smoother drilling and is 80% more durable and corrosion-resistant than regular black enamel finish.

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.

The MACXCOIP Metric 13Pcs M35 Cobalt Drill Bit Set, also known as the MACXCOIP Cobalt Drill Bit Set, is a high-quality set of drill bits suitable for a wide range of materials. With its M35 cobalt construction, these drill bits are durable, sharp, and robust, making them perfect for cutting through stainless steel, cast iron, wooden plastics, and more. The set includes 13 metric drill bits, ranging in size from 1.5mm to 6.5mm, allowing you to tackle various projects with ease. The cobalt drill bit set features a 135-degree point tip and twist design, ensuring quick and efficient cutting. Additionally, the self-centering feature prevents walk-off, while the faster chip and particle removal saves you time and effort. The HSS cobalt drill bits are designed for hardened steel, offering excellent cutting performance and long-term use. The set comes with a convenient plastic index storage box, providing easy storage and sorting for your drill bits. If you have any questions, the MACXCOIP team is always ready to assist you.

The StratMet Cobalt Drill Set offers 13 different sizes, letting you pick the perfect bit for any project. Made with 5% cobalt blended into M35 steel, these bits are tougher than regular ones and great for drilling into hard materials like stainless steel and cast iron. The drill bits feature a 135-degree split point, which helps you start drilling easily and keeps the bit from slipping. Plus, the spiral design clears out debris quickly, so your drilling stays smooth and efficient. This set is ideal for metals, plastics, and wood, making it a versatile choice for many tasks.

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.