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Step Drill Bits

Perfect for precision drilling through metal and plastic, step bits allow users to drill multiple hole sizes with a single tool. Whether you're working on panels, junction boxes, or custom fabrication, a step bit for metal provides clean, burr-free results every time. Known as one of the best step drill bits in the industry, they offer controlled, gradual cutting without changing bits. Available individually or in step bit sets, they’re a must-have for electricians, HVAC pros, and metalworkers.

  • Milwaukee 3/8" #9 Step Drill Bit

    Milwaukee
    Original price $54.97 - Original price $54.97
    Original price
    $54.97
    $54.97 - $54.97
    Current price $54.97
    In Stock

    Features JAM-FREE Performance - Dual-flute design provides greater speed and control Up to 2X faster - optimized for cordless drills in high speed Rapid Strike™ tip - creates fast, accurate starts and generates less heat Up to 4X longer bit life - optimized geometry with black oxide coating to cut faster and produce less heat Up to 50% more holes per battery charge for more productivity Laser-engraved reference marks easily stop on any hole size 3-Flat secure-grip shanks reduce bit slippage...

  • Milwaukee 3/16" - 7/8" #4 Step Drill Bit

    Milwaukee
    Original price $44.97 - Original price $44.97
    Original price
    $44.97
    $44.97 - $44.97
    Current price $44.97
    In Stock

    Features JAM-FREE Performance - Dual-flute design provides greater speed and control Up to 2X faster - optimized for cordless drills in high speed Rapid Strike™ tip - creates fast, accurate starts and generates less heat Up to 4X longer bit life - optimized geometry with black oxide coating to cut faster and produce less heat Up to 50% more holes per battery charge for more productivity Laser-engraved reference marks easily stop on any hole size 3-Flat secure-grip shanks reduce bit slippage...

One Bit, Multiple Solutions for Metal Drilling


  • Efficient Multi-Size Drilling
  • Each step bit features graduated cutting steps, allowing users to drill various hole sizes without bit changes.


  • Optimized for Metal and Plastics
  • The best step drill bit for metal handles sheet metal, stainless steel, plastic, and composites with precision.


  • Available in Step Bit Sets
  • An individual option or a full step bit set is used to cover all diameter ranges for electrical or fabrication needs.


  • Spiral and Large Step Bit Designs
  • Options include spiral step drill bits for smoother cuts and large step drill bits for broader applications.


  • Durable, Long-Lasting Build
  • Constructed from high-speed steel with titanium coatings for extended life and resistance to heat and wear.



Frequently Asked Questions About Step Drill Bits


Can step bits be used on stainless steel?

Yes, especially high-quality step bits designed for metal are effective on stainless steel.


What’s the advantage of a spiral step drill bit?

Spiral step bits offer smoother entry and reduced vibration for cleaner holes.


Is a step bit better than standard drill bits for metal?

Yes, they reduce the need for multiple bits and provide cleaner holes in thin metals.


Do I need cutting oil with step drill bits?

Yes, using cutting oil extends bit life and improves cutting efficiency in metal.


How do I choose the best step drill bit?

Look for step bits made of high-speed steel, with titanium coating, and suitable for your material thickness.