Best Step Drill Bit For Metal This Year – Workshop Tools Reviews
Our winners of the Best Step Drill Bit For Metal this year are:
BEST OVERALL
DEWALT Step Drill Bit Set

- High-speed steel
- Titanium coating
- Multiple sizes
- Tri-flat shank
- Durable case
Introduction
When working with metal, having the right tools is crucial for precision and efficiency. One of the most essential tools in any DIY enthusiast or professional’s toolkit is a step drill bit. These versatile drill bits allow you to create holes of varying sizes without needing to switch tools, making them incredibly convenient and time-saving.
Finding the best step drill bit for metal can be overwhelming due to the wide range of options available. This guide will help you navigate through the choices, ensuring you pick the right tool for your needs. We will also review some of the top products available on Amazon to make your decision easier.

Reviews & Comparisons
1. DEWALT Step Drill Bit Set
The DEWALT Step Drill Bit Set is a high-quality set designed for durability and performance. It includes bits made from high-speed steel, perfect for drilling through metal surfaces.

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Why we like it
We like the DEWALT Step Drill Bit Set for its robust construction and reliable performance. The bits come with a titanium coating, extending their lifespan and offering smooth drilling experiences.
Features
- High-speed steel
- Titanium coating
- Multiple sizes
- Tri-flat shank
- Durable case
Pros
- Durable
- Versatile sizes
- Reduced friction
- Non-slip shank
- Easy storage
Cons
- Higher price
- Limited size range
- Case could be sturdier
- Not suitable for very hard metals
- No sharpening tool included
Our Verdict
The DEWALT Step Drill Bit Set is ideal for professionals seeking durability and reliable performance, despite its higher price point.
2. IRWIN Unibit Cobalt Step Drill Bit
The IRWIN Unibit Cobalt Step Drill Bit is crafted for heavy-duty applications. Made from cobalt, it handles high temperatures, making it perfect for tough metals.

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Why we like it
We appreciate the IRWIN Unibit for its ability to withstand high heat, thanks to its cobalt composition. It’s an excellent choice for more demanding tasks.
Features
- Cobalt construction
- Single-flute design
- Laser-marked sizes
- Non-slip shank
- Thermal resistance
Pros
- High heat resistance
- Durable
- Precise size markings
- Smooth drilling
- Long-lasting
Cons
- Single bit
- Higher cost
- Limited size options
- Requires careful handling
- Not for lighter tasks
Our Verdict
The IRWIN Unibit Cobalt Step Drill Bit is best for users who need a durable tool for heavy-duty metalwork, offering excellent heat resistance.
3. Neiko Titanium Step Drill Bit Set
The Neiko Titanium Step Drill Bit Set includes three versatile bits, perfect for those who need a range of sizes in one package.

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Why we like it
We like the Neiko set for its comprehensive range of sizes and the titanium coating that ensures smooth drilling and longevity.
Features
- Three-piece set
- Titanium coating
- Multiple sizes
- Tri-flat shank
- Plastic case
Pros
- Versatile set
- Affordable
- Durable titanium
- Non-slip shank
- Easy storage
Cons
- Limited to soft metals
- Case durability
- Requires careful use
- May dull quickly
- Not for professional use
Our Verdict
The Neiko Titanium Step Drill Bit Set is an excellent budget-friendly option for hobbyists looking for versatility without breaking the bank.
4. Makita B-65399 Impact Gold Titanium Drill Bit Set
The Makita Impact Gold Titanium Drill Bit Set is designed for impact drivers and offers exceptional durability and performance.

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Why we like it
We like the Makita set for its compatibility with impact drivers and its titanium coating, which enhances durability and performance.
Features
- Impact driver compatible
- Titanium coating
- Multiple sizes
- Hex shank
- Compact case
Pros
- Impact ready
- Durable
- Versatile sizes
- Compact storage
- Reliable performance
Cons
- Higher price
- Limited to specific drills
- Small size range
- Not for very hard metals
- Requires careful handling
Our Verdict
The Makita Impact Gold Titanium Drill Bit Set is perfect for professionals using impact drivers, offering excellent durability and performance.
5. CO-Z Step Drill Bit Set
The CO-Z Step Drill Bit Set is a six-piece set offering a wide range of sizes, ideal for those needing versatility in their toolkit.

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Why we like it
We like the CO-Z set for its extensive size range and the titanium coating that ensures smooth operation and longevity.
Features
- Six-piece set
- Titanium coating
- Variety of sizes
- Tri-flat shank
- Durable case
Pros
- Wide size range
- Affordable
- Durable coating
- Non-slip shank
- Convenient storage
Cons
- Limited to softer metals
- Case quality
- Requires careful use
- May dull with heavy use
- Not for professional tasks
Our Verdict
The CO-Z Step Drill Bit Set is perfect for DIY enthusiasts looking for a budget-friendly option with a wide range of sizes.
6. Milwaukee Step Drill Bit Set
The Milwaukee Step Drill Bit Set is known for its robustness and precision, making it suitable for various metalworking tasks.

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Why we like it
We like the Milwaukee set for its excellent build quality and precision, ensuring reliable performance across different applications.
Features
- Titanium coating
- Dual-flute design
- Laser-engraved sizes
- Tri-flat shank
- Durable case
Pros
- High precision
- Durable
- Easy size identification
- Smooth operation
- Reliable performance
Cons
- Higher cost
- Limited to select sizes
- Case could be sturdier
- Not for very hard metals
- Requires careful handling
Our Verdict
The Milwaukee Step Drill Bit Set is a great choice for professionals seeking precision and reliability, despite its higher price.
7. Bosch Titanium Step Drill Bit
The Bosch Titanium Step Drill Bit is engineered for precision and efficiency, featuring a titanium coating for extended life.

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Why we like it
We like the Bosch step drill bit for its precision and titanium coating, which provides smooth drilling and long-lasting performance.
Features
- Titanium coating
- Dual-flute design
- Laser-marked sizes
- Hex shank
- Compact case
Pros
- Precision drilling
- Durable coating
- Easy size reading
- Non-slip shank
- Long-lasting
Cons
- Single bit
- Higher price
- Limited size range
- Not for heavy-duty tasks
- Requires careful handling
Our Verdict
The Bosch Titanium Step Drill Bit is ideal for users needing a precise and durable tool for light to medium metalworking tasks.
8. COMOWARE Step Drill Bit Set
The COMOWARE Step Drill Bit Set offers a complete solution with five bits, perfect for various drilling needs in metalworking.

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Why we like it
We like the COMOWARE set for its comprehensive range of sizes and the titanium coating that ensures smooth drilling and durability.
Features
- Five-piece set
- Titanium coating
- Variety of sizes
- Tri-flat shank
- Sturdy case
Pros
- Comprehensive set
- Affordable
- Durable coating
- Non-slip shank
- Convenient storage
Cons
- Limited to softer metals
- Case durability
- Requires careful use
- May dull quickly
- Not for professional tasks
Our Verdict
The COMOWARE Step Drill Bit Set is a great option for hobbyists seeking versatility and affordability in their metalworking toolkit.
9. Craftsman Step Drill Bit Set
The Craftsman Step Drill Bit Set is designed for precision and versatility, featuring a titanium coating for enhanced durability.

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Why we like it
We like the Craftsman set for its precision and the durability provided by the titanium coating, making it suitable for various applications.
Features
- Titanium coating
- Multiple sizes
- Tri-flat shank
- Dual-flute design
- Sturdy case
Pros
- Precision drilling
- Durable coating
- Versatile sizes
- Smooth operation
- Reliable performance
Cons
- Higher cost
- Limited to select sizes
- Case could be sturdier
- Not for very hard metals
- Requires careful handling
Our Verdict
The Craftsman Step Drill Bit Set is ideal for those seeking a precise and versatile tool for metalworking, offering reliability and durability.
10. Amoolo Step Drill Bit Set
The Amoolo Step Drill Bit Set features three durable bits with titanium coating, perfect for various metal drilling tasks.

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Why we like it
We like the Amoolo set for its combination of durability and affordability, offering a good range of sizes for basic metalworking tasks.
Features
- Three-piece set
- Titanium coating
- Multiple sizes
- Tri-flat shank
- Compact case
Pros
- Affordable
- Durable coating
- Versatile sizes
- Non-slip shank
- Easy storage
Cons
- Limited to softer metals
- Case quality
- Requires careful use
- May dull quickly
- Not for professional use
Our Verdict
The Amoolo Step Drill Bit Set is a budget-friendly option for beginners needing basic tools for metalworking projects.
Buying Guide
- Material: Ensure the step drill bit is made from high-speed steel (HSS) or cobalt. These materials are known for their durability and ability to handle high temperatures, making them perfect for drilling through metal. For more information on materials, check out Popular Mechanics.
- Coating: Look for coatings such as titanium or black oxide which help reduce friction and increase the lifespan of the bit. Coatings also assist in keeping the bit cooler during use. Learn more about coatings at Family Handyman.
- Size and Steps: Consider the range of sizes and number of steps on the bit. A bit with more steps provides greater flexibility in achieving the desired hole size without switching tools.
- Shank Design: A tri-flat shank or hex shank design can prevent the bit from slipping in the drill chuck, ensuring safer and more precise work.
- Price and Warranty: While not always indicative of quality, more expensive bits often offer better durability and performance. Check if the product comes with a warranty to safeguard your purchase.
FAQs
What is a step drill bit?
A step drill bit is a conical-shaped drill bit that allows you to drill holes of various diameters without changing bits. Each ‘step’ on the bit corresponds to a different diameter, providing versatility and convenience in various applications, especially in metalworking.
Can step drill bits be used on all metals?
Step drill bits are suitable for most metals, including aluminum, copper, and steel. However, their effectiveness can vary depending on the hardness of the metal and the material of the drill bit. Always ensure you’re using an appropriate drill bit material for the metal you’re working with.
How do I maintain my step drill bit?
To maintain your step drill bit, keep it clean and free from debris. After use, wipe it down and store it in a dry place to prevent rust. Regularly check for any signs of wear, and consider sharpening it if it becomes dull to prolong its life.
Are step drill bits compatible with any drill?
Most step drill bits are compatible with standard drills, provided the shank fits the drill chuck. Check the shank size and type (e.g., tri-flat or hex) to ensure compatibility with your drill.
What size step drill bit do I need?
The size of the step drill bit you need depends on the range of hole sizes you plan to drill. Consider the maximum and minimum diameters you require and choose a bit that covers that range. More steps offer more flexibility.
Conclusion
Choosing the right step drill bit for metal involves considering several factors such as material, coating, size, shank design, and price. With the right bit, you can efficiently drill holes of various sizes without constant bit changes, saving time and effort. Our reviews aim to simplify your choice by highlighting top options available on Amazon.