Best Steel Installer Bits of 2025

* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.
Steel installer bits are essential tools for anyone who needs to drill holes in metal surfaces. These bits are made of high-speed steel, which is strong and durable enough to withstand the rigours of drilling through tough materials like steel and aluminium. They come in a variety of sizes and shapes, including twist bits, step bits, and hole saws, making them versatile enough to handle any drilling task. Whether you're a professional tradesperson or a DIY enthusiast, steel installer bits are a must-have for your toolkit.
At a Glance: Our Top Picks
Top 10 Steel Installer Bits
Eagle Tool US Flex Shank Installer Bit
The Eagle Tool US Installer Bit boasts a self-feeding screw point that ensures efficient drilling, allowing you to work with ease. Its flexible spring steel shank accommodates wire fishing, making it ideal for various installations. The three flat, non-slip grip at the chuck end enhances your control while drilling, ensuring precision in every task. Additionally, you can easily adapt it to a Quick Change chuck, adding versatility to your toolkit. This combination of features makes this drill bit a practical choice for any installer.
Eagle Tool US EA10018 Installer Drill Bit
The Eagle Tool Installer Bit features an aggressive, self-feeding auger point, making it easier for you to drill into tough materials. The heat-treated spring steel shank ensures durability and reliability during use, while wire fishing accommodation holes in both the head and shank provide added convenience for wiring tasks. With no flexibility in the 18-inch shank, you can expect consistent drilling performance every time, allowing for precise installation work.
Irwin Installer Drill Bit for Wood
The Irwin Installer Drill Bit offers a sharp 82˚ point, ensuring fast and smooth drilling in wood. This feature allows you to work quickly and efficiently, saving you time on your projects. Additionally, the hole in the flute makes it easy for you to pull wires through walls, ceilings, and floors, which is incredibly useful for installations. The 3-flatted shank prevents slipping in the drill chuck, providing you with stability and control during use. Made from premium high carbon steel, this drill bit ensures extended drilling life, making it a reliable choice for your woodworking needs.
Hilitand 10 Pcs Drywall Screwdriver Bits Set
The Hilitand Drywall Bits offer a host of features that enhance your drywall installation experience. The magnetic circle ensures screws are absorbed tightly, minimising wear and prolonging their lifespan. With a depth stop design, you can prevent screws from penetrating too deeply, protecting your plasterboard from damage. These bits are specifically designed for PH2 screwdriver compatibility, making them ideal for drywall screws. Made from chrome vanadium steel, they promise high durability and excellent performance, ensuring they stand the test of time.
EMILYPRO Flex Shank Installer Drill Bit Guide Kit
The EMILYPRO Installer Drill Guide is specially designed to help you keep your flex shank drill bit straight while you work. It is particularly useful in narrow or hard-to-reach spaces within walls. You simply insert the flex shank bits into the PVC bumper balls, fasten the stoppers, and you are ready to go. This kit includes two different sizes of PVC balls, allowing you to choose the right one for your specific task, ensuring versatility and convenience for various drilling conditions.
Eagle Tool US EM25024 Installer Drill Bit
The Eagle Tool Installer Bit features a carbide tip, making it ideal for masonry applications. This durable tip ensures effective drilling through tough materials, giving you reliable performance. The flexible spring steel shank includes wire fishing accommodation holes, allowing you to easily manage wires during installation tasks. Additionally, the three flat non-slip grip on the chuck end provides you with enhanced control, making it safer and easier to use. You can also add a Quick Switch Hex for added versatility with quick change chucks.
EGO 8-Inch Earth Auger Bit for Fencing
The EGO Earth Auger Bit is designed for use with POWER+ Earth Augers, making it a versatile tool for your outdoor projects. Its 8-inch diameter is perfect for installing standard fencing and deck posts, ensuring you can get the job done efficiently. The 7/8-inch connection allows for quick and easy bit changes, saving you valuable time. Additionally, its heavy-duty steel construction and anti-corrosion powder coat finish provide durability, so you can rely on this tool for long-lasting performance.
Eagle Tool US 9/16-Inch Flex Shank Drill Bit
The Eagle Tool US Drill Bit features a split point design that helps you start drilling more easily, while its serrated body allows for aggressive cutting through materials. The heat-treated spring steel shank ensures durability, providing confidence in its strength during use. Additionally, the drill bit has wire fishing accommodation holes, making it convenient for accessing wiring. With a three-flat non-slip grip on the chuck end, you can enjoy better control and stability while drilling.
ENT 09190 Extra Long Auger Bit Set
The ENT 09190 Auger Bits set is an essential tool for tradesmen and DIY enthusiasts. With a total length of 460mm, these bits allow you to easily drill holes in thick beams and rafters, making it perfect for projects that require extra long screws. Made from hardened tool steel, the bits feature an anti-stick coating for improved chip transport, helping you work efficiently. The threaded centre point reduces the force needed when drilling, providing a smoother experience. Each bit fits securely in your hand drill due to the hexagonal shaft, ensuring precision and ease while working.
IRWIN 36-Inch Straight Shank Installer Drill Bit
The IRWIN Installer Drill Bit features an 82˚ point, allowing you to drill quickly and smoothly through wood. The hole in the flute is especially handy for pulling wires through walls, ceilings, and floors, making your installations easier. Its 3-flatted shank design prevents slipping in the drill chuck, ensuring a secure grip as you work. Constructed from premium high carbon steel, this drill bit offers extended durability, so you can rely on it for your woodworking projects.
Frequently Asked Questions (FAQs)
1. What are the best bits to drill through steel?
Clearly, the best drill bits for hardened metal or steel come with a cobalt blend. These cobalt drill bits use an alloy including 5%–8% cobalt. This cobalt makes up part of the steel blend, so the hardness of the bit doesn't wear off with a coating (like titanium bits). It runs throughout the entire bit.
2. What kind of bit do you use for metal?
In general, it's a good idea to drill through metal using as slow a speed as possible using a drill bit for metal. Hard metals like steel and larger drill bits require even slower speeds. With a small twist bit (1/16 in. to 3/16 in.), you can drill through most metals at 3,000 rpm.
3. What is the hardest drill bit for metal?
Cobalt (HSCO) is considered an upgrade from HSS because it includes 5-8% Cobalt blended into the base material. This is a great option for drilling into harder steel as well as stainless steel grades. Carbide (Carb) is the hardest and most brittle of the drill bit materials.
4. Do diamond bits work on steel?
While diamond drill bits are designed for drilling in extremely hard materials, Electroplated Diamond Drill Bits are NOT designed for use on metal, concrete or masonry materials. For drilling in concrete, masonry, and metals such as iron, cast iron and steel, a carbide tipped drill bit must be used.
During our steel installer bit research, we found 23 steel installer bit products and shortlisted 10 quality products. We collected and analyzed 17,813 customer reviews through our big data system to write the steel installer bits list. We found that most customers choose steel installer bits with an average price of £30.03.
The steel installer bits are available for purchase. We have researched hundreds of brands and picked the top brands of steel installer bits, including Eagle Tool US, IRWIN, Hilitand, QZATTCAEN, EGO.

Jennifer Fraser is a licensed contractor specializing in sales, maintenance, and kitchen, bathroom, and home appliances, tools, and utilities. She owns a store in Leeds where you can get any home and tool appliance. Jenny has a degree in literature, but she combines her knowledge and experience with her degree to publish DIY articles on solving home appliances issues to keep up the family enterprise.