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Self-Feed Bits

Designed for speed and precision, self feed bits are perfect for professionals needing large, clean holes in wood. Commonly used by electricians and plumbers, these wood boring drill bits work aggressively while maintaining accuracy. Built for heavy-duty applications, these self feed drill bits ensure minimal blowout, faster chip ejection, and extended tool life. Whether you’re installing pipes, conduit, or framing, these are the hole drilling bits that get the job done right.

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    Diablo 2-1/8" SPEEDemon 2-Cutter Self Feed Bit

    Diablo
    $43.99 - $43.99
    $43.99
    $43.99 - $43.99
    $43.99
    In Stock

    Features Precision Heat Forged 2-Cutter Head made from premium steel on fully-automated equipment delivers quality and consistency for smooth drilling and up to 2X longer life & 2X more holes per battery charge Aggressive Low Thread Count Feed Screw prevents pitch build-up for hi-performance cuts and up to 2X faster hole making Feed Screw with Pull Out Stop design prevents the feed screw from slipping out when the bit is removed from the material Includes replacement feed screw and Alle...
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    Diablo 3-5/8" SPEEDemon 2-Cutter Self Feed Bit

    Diablo
    $106.98 - $106.98
    $106.98
    $106.98 - $106.98
    $106.98
    In Stock

    Features Precision Heat Forged 2-Cutter Head made from premium steel on fully-automated equipment delivers quality and consistency for smooth drilling and up to 2X longer life & 2X more holes per battery charge Aggressive Low Thread Count Feed Screw prevents pitch build-up for hi-performance cuts and up to 2X faster hole making Feed Screw with Pull Out Stop design prevents the feed screw from slipping out when the bit is removed from the material Includes replacement feed screw and Alle...
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    Diablo 3" SPEEDemon 2-Cutter Self Feed Bit

    Diablo
    $72.98 - $72.98
    $72.98
    $72.98 - $72.98
    $72.98
    In Stock

    Features Precision Heat Forged 2-Cutter Head made from premium steel on fully-automated equipment delivers quality and consistency for smooth drilling and up to 2X longer life & 2X more holes per battery charge Aggressive Low Thread Count Feed Screw prevents pitch build-up for hi-performance cuts and up to 2X faster hole making Feed Screw with Pull Out Stop design prevents the feed screw from slipping out when the bit is removed from the material Includes replacement feed screw and Alle...
  • ndulvoa5a9iwfjgcsapi.png

    Diablo 2-9/16" SPEEDemon 2-Cutter Self Feed Bit

    Diablo
    $38.17 - $38.17
    $38.17
    $38.17 - $38.17
    $38.17
    In Stock

    Features Precision Heat Forged 2-Cutter Head made from premium steel on fully-automated equipment delivers quality and consistency for smooth drilling and up to 2X longer life & 2X more holes per battery charge Aggressive Low Thread Count Feed Screw prevents pitch build-up for hi-performance cuts and up to 2X faster hole making Feed Screw with Pull Out Stop design prevents the feed screw from slipping out when the bit is removed from the material Includes replacement feed screw and Alle...
  • itzbpz7fp9lz7ot07aif.png

    Diablo 2-1/4" SPEEDemon 2-Cutter Self Feed Bit

    Diablo
    $40.99 - $40.99
    $40.99
    $40.99 - $40.99
    $40.99
    In Stock

    Features Precision Heat Forged 2-Cutter Head made from premium steel on fully-automated equipment delivers quality and consistency for smooth drilling and up to 2X longer life & 2X more holes per battery charge Aggressive Low Thread Count Feed Screw prevents pitch build-up for hi-performance cuts and up to 2X faster hole making Feed Screw with Pull Out Stop design prevents the feed screw from slipping out when the bit is removed from the material Includes replacement feed screw and Alle...
  • yakyfa7goorfmhn4m8uc.png

    Diablo 2" SPEEDemon 2-Cutter Self Feed Bit

    Diablo
    $33.93 - $33.93
    $33.93
    $33.93 - $33.93
    $33.93
    In Stock

    Features Precision Heat Forged 2-Cutter Head made from premium steel on fully-automated equipment delivers quality and consistency for smooth drilling and up to 2X longer life & 2X more holes per battery charge Aggressive Low Thread Count Feed Screw prevents pitch build-up for hi-performance cuts and up to 2X faster hole making Feed Screw with Pull Out Stop design prevents the feed screw from slipping out when the bit is removed from the material Includes replacement feed screw and Alle...
  • u1kezpmg7uf87cmvwbga.png

    Diablo 1-1/2" SPEEDemon 2-Cutter Self Feed Bit

    Diablo
    $36.47 - $36.47
    $36.47
    $36.47 - $36.47
    $36.47
    In Stock

    Features Precision Heat Forged 2-Cutter Head made from premium steel on fully-automated equipment delivers quality and consistency for smooth drilling and up to 2X longer life & 2X more holes per battery charge Aggressive Low Thread Count Feed Screw prevents pitch build-up for hi-performance cuts and up to 2X faster hole making Feed Screw with Pull Out Stop design prevents the feed screw from slipping out when the bit is removed from the material Includes replacement feed screw and Alle...
  • ypad9isn5n1lbvmk1dzh.png

    Diablo 1-3/8" SPEEDemon 2-Cutter Self Feed Bit

    Diablo
    $29.99 - $29.99
    $29.99
    $29.99 - $29.99
    $29.99
    In Stock

    Features Precision Heat Forged 2-Cutter Head made from premium steel on fully-automated equipment delivers quality and consistency for smooth drilling and up to 2X longer life & 2X more holes per battery charge Aggressive Low Thread Count Feed Screw prevents pitch build-up for hi-performance cuts and up to 2X faster hole making Feed Screw with Pull Out Stop design prevents the feed screw from slipping out when the bit is removed from the material Includes replacement feed screw and Alle...
  • dg8fvc6fsoy1smm0evhe.png

    Diablo 1-1/8" SPEEDemon 2-Cutter Self Feed Bit

    Diablo
    $26.17 - $26.17
    $26.17
    $26.17 - $26.17
    $26.17
    In Stock

    Features Precision Heat Forged 2-Cutter Head made from premium steel on fully-automated equipment delivers quality and consistency for smooth drilling and up to 2X longer life & 2X more holes per battery charge Aggressive Low Thread Count Feed Screw prevents pitch build-up for hi-performance cuts and up to 2X faster hole making Feed Screw with Pull Out Stop design prevents the feed screw from slipping out when the bit is removed from the material Includes replacement feed screw and Alle...
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    Milwaukee 2-1/8" Selfeed Bit

    Milwaukee
    $49.97 - $49.97
    $49.97
    $49.97 - $49.97
    $49.97
    In Stock

    Features Faster, more accurate drilling - center feed screw pilots the bit and allows the bit to pull through fast Clean holes - inside cutting plane shaves the hole radius for clean, smooth holes without pressure Long-lasting performance - bits are resharpenable Include two removable, replaceable feed screws Specifications Bit Diameter: 2 1/8 in Bit Type: Specialty Self Feeding: Yes Bit Material: High Speed Steel Shank Diameter (in): 0.437500 Minimum Chuck Size Required: 1/2 in Length: 6...

Precision Boring Power for Every Job


  • Aggressive Self-Feeding Tip

    • The threaded screw point pulls the bit through wood effortlessly, reducing user fatigue and improving accuracy.


  • Clean and Controlled Cutting

    • Engineered cutting edges produce smooth, splinter-free holes—perfect for finish work and large diameter drilling.


  • Ideal for Tough Trades

    • These are go-to plumber drill bits, also favored by electricians for quick work in studs, joists, and subfloors.


  • Durable Construction for Long Life

    • Heat-treated steel resists wear and breakage, making them perfect for repetitive, high-demand use.


  • Versatile for Large Hole Applications

    • Whether you're using large hole drill bits for HVAC, plumbing, or electrical jobs, self feed bits deliver efficient performance in all wood types.



Frequently Asked Questions About Self-Feed Bits


What are self feed bits used for?

Self feed bits are used for boring large holes in wood, often for plumbing or electrical installations.


Can self feed bits drill through hardwood?

Yes, their aggressive design handles hardwood efficiently with minimal effort.


Do I need a special drill for self feed bits?

They are best used with high-torque drills or right-angle drills for maximum control.


Are self feed bits reusable?

Yes, they are made of durable materials and can be sharpened for extended use.


How do self feed bits differ from spade bits?

Self feed bits offer cleaner holes, faster feed, and better control in large bore tasks.

Clearance Center

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    Werner Fall Protection
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