Best Step Bits for Steel of 2025

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Step bits for steel are innovative tools designed to drill holes in metal surfaces with ease. These bits are made from high-speed steel and have a spiral flute design that allows for clean and accurate drilling. The step design of the bits allows for multiple hole sizes to be created with a single bit, making them versatile and cost-effective. They are ideal for use in a variety of applications, including HVAC installation, electrical work, and metal fabrication. These step bits are a must-have for anyone who needs to drill holes in steel quickly and efficiently.
At a Glance: Our Top Picks
Top 10 Step Bits for Steel
YOKOCUT Cobalt Step Drill Bit for Metal
The YOKOCUT Cobalt Step Bit is designed for precision and efficiency, allowing you to drill holes ranging from 4mm to 32mm with 15 incremental steps. Made from premium HSS Cobalt M35 steel, it offers excellent heat and wear resistance, ensuring a longer lifespan for the tool. You will find that it runs three times faster than standard bits, making it ideal for tackling tough materials like stainless steel and sheet metal. Its specially ground cutting edge enhances performance, making drilling through various materials easier and more effective.
YOKOCUT 6PCS Step Drill Bits Set
The YOKOCUT Step Drill Bits are crafted from high-speed steel with a titanium coating, ensuring reduced friction for smoother cutting. You can easily drill through materials like iron, aluminium, wood, and plastic, with a range of sizes from 4mm to 35mm to suit your needs. The automatic centre punch feature increases impact force, making it easier to mark precise points before drilling. Additionally, the innovative design includes a split point and double groove, which helps prevent waste and ensures a clean cut every time.
STROTON Metric M35 Cobalt Step Drill Bit for Stainless Steel and Hard Metal
YOKOCUT 6-65 mm Step Drill HSS Spiral Grooved Step Bit for Metal Steel Plastic Wood
12 Size Titanium Step Drill Bit for DIY
The LSDZHK Step Drill offers an impressive range of 12 hole sizes, allowing you to tackle various projects without the hassle of changing bits frequently. Its durable titanium coating enhances wear resistance, ensuring you achieve better and faster drilling performance. Designed for universal compatibility, this drill bit can effortlessly drill through materials such as acrylic, PVC, wood, aluminium, and iron sheets. Additionally, it is easy to use, requiring minimal shaking and eliminating the need for centre punching, making it suitable for both beginners and experienced DIY enthusiasts.
YOKOCUT HSS Titanium Step Drill Bit Set
The YOKOCUT Step Drill Bit is crafted from 100% genuine HSS 4241, ensuring durability and reliability for your drilling tasks. Its titanium coating enhances its performance, making it more capable in various materials. You will find the two-flute design beneficial for smoother cutting, which allows for cleaner holes. Additionally, the high step design prevents accidental drilling to larger sizes, giving you precise control over your project.
Gunpla 3 Piece HSS Spiral Step Drill Bits Set, Titanium Coated Hex Shank Drilling Bit Kit for Wood, Stainless Steel
SS SHOVAN 3PCS HSS Spiral Step Drill Set
The SS SHOVAN Step Drill Bits are designed for efficient drilling with their upgraded four-flute spiral design, which helps prevent metal splatter and makes swarf removal easier. The 118° X type openings ensure quicker, smoother drilling, while the 1/4" hex shank eliminates slipping, making it ideal for various materials like plastic, metal, and wood. Crafted from durable titanium-coated HSS 4341 steel, these bits offer excellent wear and corrosion resistance, ensuring longevity. Whether you're expanding holes or doing precision work, this set is a must-have for DIY enthusiasts.
DIWUJI Spiral Grooved Step Drill Bit Set
The DIWUJI Step Drill Bit Set features a two-flute spiral groove design, allowing for faster and smoother cutting. This means you can tackle your DIY projects with ease, making clean holes without the hassle of bit changes. Made from high-speed steel and titanium coated, these bits ensure easy cutting through materials like metal, wood, and plastic. The 1/4" hex shank fits securely in most drills, providing a stable connection that eliminates slippage as you work.
Blue Spot Tools Step Drill HSS Steel Titanium Cone Bit Hole Metal Cutter Tool 4-42mm
Frequently Asked Questions (FAQs)
1. Can you use a step drill bit on steel?
A step drill bit can be used to drill a range of different sized holes with a single bit. Since each bit size drill holes less than 1/4″ deep, a step bit is mainly used for drilling thin material such as sheet metal.
2. What is a steel step bit used for?
Step drill bits are used to drill metal up to 1/4 of an inch thick. Step drill bits are designed to enlarge a hole as the bit drills through the sheet metal. Each step on the bit is larger in diameter than the step before.
3. What bit to use on 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).
During our step bit for steel research, we found 276 step bit for steel products and shortlisted 10 quality products. We collected and analyzed 20,009 customer reviews through our big data system to write the step bits for steel list. We found that most customers choose step bits for steel with an average price of £17.38.
The step bits for steel are available for purchase. We have researched hundreds of brands and picked the top brands of step bits for steel, including YOKOCUT, STROTON, LSDZHK, Gunpla, SS SHOVAN. The seller of top 1 product has received honest feedback from 238 consumers with an average rating of 4.8.

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.