HDD Drill Bits

Professional-grade HDD drill bits designed for directional drilling in a wide range of soil and ground conditions. Built for durability, dependable cutting performance, and efficient boring, with configurations available to match different drill rigs, formations, and jobsite requirements. Choose from a variety of bit styles, sizes, carbide configurations, and connection options for applications ranging from softer soils and clay to compacted ground and more challenging formations. Not sure which drill bit is right for your application? Contact American Underground Solutions and we’ll help you select the right bit for your machine and ground conditions.

Showing all 17 results

  • Ditch Witch® Compatible Barracuda Bits (5 & 6 Bolt)

    Ditch Witch® Compatible Barracuda Bits (5 & 6 Bolt)

    Ditch Witch® Compatible Steep Taper Barracuda Bit

    The Ditch Witch® Compatible Steep Taper Barracuda Bit is built for demanding horizontal directional drilling applications in compact soils, cobble, shale, sandstone, caliche, and rock.

    Its diamond-shaped cutting profile promotes efficient ground penetration while providing dependable steering and control. Low-profile rear carbides help provide smooth pullback, while extensive carbide coverage delivers aggressive cutting performance and added protection in tough, abrasive ground conditions.

    Constructed from durable 4140 steel plate, the Steep Taper Barracuda is designed for strength, extended service life, and reliable performance in challenging HDD applications.

    Key Features

    • Diamond-Shaped Cutting Profile: Promotes efficient penetration and dependable steering.
    • Built for Tough Ground: Designed for compact soils, cobble, shale, sandstone, caliche, and rock.
    • Carbide Coverage: Provides aggressive cutting performance and protection in abrasive conditions.
    • Low-Profile Rear Carbides: Designed to help provide smooth, efficient pullback.
    • Heavy-Duty Construction: Made from durable 4140 steel plate for strength and long service life.
    • Compatible Bolt Patterns: Available in configurations compatible with Ditch Witch® and Vermeer® HDD equipment.

    Available in multiple sizes.

  • Ditch Witch® Compatible Bits, Hardfaced, 5 Bolt

    Ditch Witch® Compatible Bits, Hardfaced, 5 Bolt

    Ditch Witch® Compatible 5-Bolt Hardfaced Bit

    Designed for demanding horizontal directional drilling applications, the Ditch Witch® Compatible 5-Bolt Hardfaced Bit provides dependable performance in compact clay, gravel, and other abrasive soil conditions.

    The entire perimeter of the bit features carbide-impregnated hardfacing to provide increased wear resistance and protection during demanding drilling applications. Constructed from durable 4140 steel plate, this bit is built for strength, extended service life, and reliable performance.

    The 5-bolt configuration provides a secure fit with compatible Ditch Witch® HDD equipment for dependable drilling performance and control.

    Key Features

    • Carbide Wear Protection: Carbide-impregnated hardfacing helps protect the entire perimeter of the bit against excessive wear.
    • Heavy-Duty Construction: Manufactured from durable 4140 steel plate for strength and extended service life.
    • Built for Abrasive Ground: Designed for compact clay, gravel, and other abrasive soil conditions.
    • 5-Bolt Configuration: Provides a secure, reliable connection with compatible HDD equipment.
    • Ditch Witch® Compatible: Designed for use with compatible Ditch Witch® HDD equipment.

    Available in multiple sizes.

  • Ditch Witch® Compatible Bits, Hardfaced, 6 Bolt

    Ditch Witch® Compatible Bits, Hardfaced, 6 Bolt

    Ditch Witch® Compatible 6-Bolt Hardfaced Bit

    Designed for demanding horizontal directional drilling applications, the Ditch Witch® Compatible 6-Bolt Hardfaced Bit provides dependable performance in clay, sand, gravel, alluvial formations, and other abrasive soil conditions.

    The entire perimeter of the bit features carbide-impregnated hardfacing to provide increased wear resistance and protection during demanding drilling applications. Constructed from durable 4140 steel plate, this bit is built for strength, extended service life, and reliable performance.

    The 6-bolt configuration provides a secure fit with compatible Ditch Witch® HDD equipment for dependable drilling performance and control.

    Key Features

    • Carbide Wear Protection: Carbide-impregnated hardfacing helps protect the entire perimeter of the bit against excessive wear.
    • Heavy-Duty Construction: Manufactured from durable 4140 steel plate for strength and extended service life.
    • Built for Abrasive Ground: Designed for clay, sand, gravel, alluvial formations, and other challenging soil conditions.
    • 6-Bolt Configuration: Provides a secure, reliable connection with compatible HDD equipment.
    • Ditch Witch® Compatible: Designed for use with compatible Ditch Witch® HDD equipment.

    Available in multiple sizes.

  • Ditch Witch® Compatible Sabre Bits

    Ditch Witch® Compatible Sabre Bits

    Ditch Witch® Compatible Sabre Bit

    Designed for demanding horizontal directional drilling applications, the Ditch Witch® Compatible Sabre Bit delivers aggressive cutting and dependable steering performance in hardpan, cobble, and other challenging ground conditions.

    The Sabre features an aggressive cutting profile designed to provide efficient ground penetration while maintaining control through difficult formations. Its rugged construction provides the strength and durability needed for demanding HDD applications where both cutting performance and steering are critical.

    Available in 5-bolt and 6-bolt configurations, the Sabre Bit is designed for a secure fit with compatible Ditch Witch® HDD equipment.

    Key Features

    • Aggressive Cutting Design: Promotes efficient penetration through hard and challenging formations.
    • Dependable Steering: Designed to maintain control when drilling through difficult ground conditions.
    • Built for Tough Ground: Well suited for hardpan, cobble, and other demanding formations.
    • Heavy-Duty Construction: Built for strength, durability, and extended service life.
    • 5 & 6-Bolt Configurations: Available for a variety of compatible Ditch Witch® HDD equipment.
    • Ditch Witch® Compatible: Designed for use with compatible Ditch Witch® HDD equipment.

    Available in multiple sizes.

  • Ditch Witch® Compatible Steep Taper Dome Bits, 6 Bolt

    Ditch Witch® Compatible Steep Taper Dome Bits, 6 Bolt

    Ditch Witch® Compatible Steep Taper Dome Bit

    Designed for demanding horizontal directional drilling applications, the Ditch Witch® Compatible Steep Taper Dome Bit delivers aggressive penetration and dependable performance in hard, compact soils, cobble, and other challenging ground conditions.

    The bit features steep tapered carbide cutters with dome carbides designed to promote quick ground penetration and responsive steering through difficult formations. The entire perimeter is protected with carbide-impregnated hard surfacing, providing increased wear resistance in abrasive drilling conditions.

    Constructed from durable 4140 steel plate, the Steep Taper Dome Bit is built for strength, extended service life, and reliable performance in demanding HDD applications.

    Key Features

    • Steep Taper Cutting Design: Promotes quick, aggressive penetration into hard and compact formations.
    • Dome Carbide Cutters: Designed to provide durable cutting performance in demanding ground conditions.
    • Carbide Wear Protection: Carbide-impregnated hard surfacing helps protect the entire perimeter against excessive wear.
    • Dependable Steering: Designed to support responsive steering and control through challenging formations.
    • Heavy-Duty Construction: Manufactured from durable 4140 steel plate for strength and extended service life.
    • Built for Tough Ground: Designed for hard, compact soils, cobble, and other challenging drilling conditions.
    • Compatible Bolt Patterns: Available in configurations compatible with Ditch Witch® and Vermeer® HDD equipment.

    Available in multiple sizes.

  • Ditch Witch® Compatible Steep Taper Sabre Bits

    Ditch Witch® Compatible Steep Taper Sabre Bits

    Ditch Witch® Compatible Steep Taper Sabre Bit

    Designed for demanding horizontal directional drilling applications, the Ditch Witch® Compatible Steep Taper Sabre Bit delivers aggressive cutting performance in hard, compact soils, cobble, and other challenging ground conditions.

    The Sabre features steep tapered carbide cutters designed to promote quick penetration into difficult formations while providing dependable drilling performance. Carbide-impregnated hard surfacing provides additional wear protection, helping extend bit life in abrasive and demanding conditions.

    Constructed from durable 4140 steel plate, the Steep Taper Sabre Bit is built for strength, extended service life, and reliable performance in tough HDD applications.

    Key Features

    • Steep Taper Cutting Design: Promotes quick, aggressive penetration into hard and compact formations.
    • Carbide Cutters: Designed for effective cutting performance in compact soils and cobble.
    • Carbide Wear Protection: Carbide-impregnated hard surfacing helps protect the bit against excessive wear.
    • Heavy-Duty Construction: Manufactured from durable 4140 steel plate for strength and extended service life.
    • Built for Tough Ground: Designed for hard, compact soils, cobble, and other challenging drilling conditions.
    • 5 & 6-Bolt Configurations: Available for a variety of compatible HDD equipment.
    • Ditch Witch® Compatible: Designed for use with compatible Ditch Witch® HDD equipment.

    Available in multiple sizes.

  • Ditch Witch® Compatible Thrasher Bits, 5 or 6 Bolt

    Ditch Witch® Compatible Thrasher Bits, 5 or 6 Bolt

    Ditch Witch Compatible Thrasher Bits

    Available in 5-bolt and 6-bolt configurations.

    Designed to aggressively cut through hardpan, caliche, sandstone, and other challenging formations, Thrasher bits combine durable construction with an aggressive cutting design for reliable drilling performance.

    Whether you’re working in dense soils or abrasive, rocky conditions, these bits provide the cutting power, durability, and control needed to keep your bore moving.

    Available in multiple sizes.

  • Straightline® Bent Bits

    Straightline® Bent Bits

    Bent Bits

    Bent Bits are designed for horizontal directional drilling applications in softer and abrasive ground conditions, including alluvial soils, clay, sand, and gravel. The bent, over-center design provides increased steering response, helping operators maintain control and make directional adjustments throughout the bore.

    Carbide-impregnated hard surfacing protects the entire perimeter of the bit, while the 4140 steel plate construction provides the strength and durability needed for demanding HDD applications.

    Key Features

    • Bent / Over-Center Design: Provides improved steering response in softer ground conditions.
    • Carbide Wear Protection: Carbide-impregnated hard surfacing protects the entire perimeter of the bit.
    • 4140 Steel Construction: Heavy-duty steel plate provides strength and extended service life.
    • Versatile Ground Conditions: Designed for alluvial soils, clay, sand, gravel, and other softer or abrasive formations.
    • 6-Bolt Configuration: Designed for compatible HDD drilling systems.
    • Durable Construction: Built to withstand demanding drilling and steering applications.

    Available in multiple sizes.

  • Straightline® Tuff Bits

    Straightline® Tuff Bits

    Tuff Bits

    Tuff Bits are designed for horizontal directional drilling applications in highly abrasive and challenging ground conditions. Their bent, over-center design helps improve steering response while providing the durability needed for demanding drilling environments.

    Constructed from S7 tool steel, these bits are built to withstand excessive wear and provide extended service life in abrasive soils and rocky conditions.

    Key Features

    • Bent / Over-Center Design: Helps improve steering response and directional control.
    • S7 Tool Steel Construction: Provides increased durability and wear resistance in highly abrasive conditions.
    • Built for Abrasive Ground: Designed for rocky terrain, abrasive soils, and other demanding formations.
    • Long Service Life: Heavy-duty construction helps reduce premature wear and replacement frequency.
    • Efficient Drilling Performance: Designed to maintain productive cutting and steering in difficult conditions.
    • Durable HDD Design: Built for demanding horizontal directional drilling applications.

    Available in multiple sizes.

  • Vermeer Compatible Steep Taper Dome Bits

    Vermeer Compatible Steep Taper Dome Bits

    Vermeer® Compatible Steep Taper Dome Bits

    Vermeer® Compatible Steep Taper Dome Bits are designed for demanding horizontal directional drilling applications where hard, compact, and abrasive ground conditions require aggressive cutting performance. The steep taper design provides effective penetration while helping maintain control through challenging formations.

    Strategically positioned carbide cutters and additional carbide protection help improve cutting efficiency and protect critical wear areas, providing dependable performance and extended service life in tough drilling conditions.

    Key Features

    • Steep Taper Design: Provides aggressive penetration in hard and compact ground conditions.
    • Carbide Cutting Protection: Helps protect critical wear areas and extend bit life.
    • Built for Tough Ground: Designed for rock, compacted soils, gravel, and other challenging formations.
    • Efficient Cutting Action: Helps maintain productive drilling performance in difficult conditions.
    • Heavy-Duty Construction: Built to withstand demanding HDD applications.
    • Vermeer® Compatible: Designed for use with compatible Vermeer® horizontal directional drilling equipment.

    Available in multiple sizes.

  • Vermeer Compatible Steep Taper Sabre Bits

    Vermeer Compatible Steep Taper Sabre Bits

    Vermeer® Compatible Steep Taper Sabre Bit

    Designed for demanding horizontal directional drilling applications, the Vermeer® Compatible Steep Taper Sabre Bit delivers aggressive cutting performance in hard rock, compacted soils, gravel, cobble, and other challenging ground conditions.

    The Sabre features strategically positioned carbide buttons designed to provide aggressive cutting action and efficient penetration through difficult formations. Additional carbide protection along the cutting edges provides increased wear resistance, helping extend bit life in abrasive and demanding drilling conditions.

    Built for strength, durability, and dependable performance, the Steep Taper Sabre Bit provides the cutting action and control needed for tough HDD applications.

    Key Features

    • Steep Taper Cutting Design: Promotes aggressive penetration into hard and compact formations.
    • Carbide Cutting Buttons: Strategically positioned to provide effective cutting action through difficult ground.
    • Carbide Edge Protection: Helps protect critical cutting surfaces against excessive wear and abrasion.
    • Built for Tough Ground: Designed for hard rock, compacted soils, gravel, cobble, and other challenging formations.
    • Dependable Performance: Designed to provide consistent cutting performance and extended service life in demanding HDD applications.
    • Vermeer® Compatible: Designed for use with compatible Vermeer® HDD equipment.

    Available in multiple sizes.

  • Vermeer® Compatible Barracuda Bits

    Vermeer® Compatible Barracuda Bits

    Vermeer-Compatible Steep Taper Barracuda Bits

    Designed for demanding drilling conditions, Vermeer-Compatible Steep Taper Barracuda Bits provide aggressive cutting performance in compact, abrasive, and challenging soils. The steep taper design promotes efficient ground penetration while durable construction helps withstand the demands of tough HDD applications.

    Built for accuracy, control, and dependable performance, Barracuda Bits are an excellent choice for horizontal directional drilling contractors looking for reliable tooling for their Vermeer-compatible drill setup.

    Key Features

    • Steep Taper Design: Promotes fast, efficient ground penetration.
    • Durable Construction: Built to withstand compact and abrasive soil conditions.
    • Controlled Drilling: Designed to support accurate, consistent HDD performance.
    • Vermeer Compatible: Designed for use with compatible Vermeer HDD equipment.
    • Built for Tough Conditions: Provides dependable performance in demanding drilling applications.

    Available in multiple sizes.

  • Vermeer® Compatible Bits, Hardfaced, Large

    Vermeer® Compatible Bits, Hardfaced, Large

    Vermeer® Compatible Large Hardfaced Bit

    Designed for demanding horizontal directional drilling applications, the Vermeer® Compatible Large Hardfaced Bit provides dependable performance in compact, abrasive, and challenging soil conditions.

    The entire perimeter of the bit features carbide-impregnated hardfacing to provide increased wear resistance and protection during demanding drilling applications. Constructed from durable 4140 steel plate, this bit is built for strength, extended service life, and reliable performance.

    Its larger design makes it well suited for compatible Vermeer® HDD equipment and applications requiring a larger-profile bit.

    Key Features

    • Carbide Wear Protection: Carbide-impregnated hardfacing helps protect the entire perimeter of the bit against excessive wear.
    • Heavy-Duty Construction: Manufactured from durable 4140 steel plate for strength and extended service life.
    • Built for Abrasive Ground: Designed for compact, abrasive, and challenging soil conditions.
    • Large-Profile Design: Designed for HDD applications requiring a larger-profile bit.
    • Vermeer® Compatible: Designed for use with compatible Vermeer® HDD equipment.

    Available in multiple sizes.

  • Vermeer® Compatible Bits, Hardfaced, Small

    Vermeer® Compatible Bits, Hardfaced, Small

    Vermeer® Compatible Small Hardfaced Bit

    Designed for horizontal directional drilling in abrasive soil conditions, the Vermeer® Compatible Small Hardfaced Bit provides dependable performance in clay, sand, gravel, and other abrasive formations.

    The entire perimeter of the bit features carbide-impregnated hardfacing to provide increased wear resistance and protection during demanding drilling applications. Constructed from durable 4140 steel plate, this bit is built for strength, extended service life, and reliable performance.

    Its compact design makes it well suited for compatible Vermeer® HDD equipment and applications requiring a smaller-profile bit.

    Key Features

    • Carbide Wear Protection: Carbide-impregnated hardfacing helps protect the entire perimeter of the bit against excessive wear.
    • Heavy-Duty Construction: Manufactured from durable 4140 steel plate for strength and extended service life.
    • Built for Abrasive Ground: Designed for clay, sand, gravel, and other abrasive soil conditions.
    • Compact Design: Smaller profile for applications requiring a compact HDD bit.
    • Vermeer® Compatible: Designed for use with compatible Vermeer® HDD equipment.

    Available in multiple sizes.

  • Vermeer® Compatible Bits, Raptor, Large

    Vermeer® Compatible Bits, Raptor, Large

    Vermeer® Compatible Large Raptor Bit

    Designed for demanding horizontal directional drilling applications, the Vermeer® Compatible Large Raptor Bit delivers aggressive cutting performance in hard soils, rocky terrain, abrasive conditions, and other challenging ground formations.

    The Raptor features a large cutting surface with strategically positioned carbide cutters designed to promote efficient ground penetration and provide increased wear resistance. Its aggressive cutting design helps maintain steady drilling progress through tough and abrasive formations.

    Constructed from heavy-duty steel, the Large Raptor Bit is built for strength, extended service life, and dependable performance in demanding HDD applications.

    Key Features

    • Aggressive Cutting Design: Large cutting surface promotes efficient penetration through difficult formations.
    • Carbide Cutters: Durable carbide cutters provide increased wear resistance in abrasive ground conditions.
    • Built for Challenging Ground: Designed for hard soils, rocky terrain, and other demanding formations.
    • Heavy-Duty Construction: Built for strength, durability, and extended service life.
    • Large-Profile Design: Designed for HDD applications requiring a larger-profile bit.
    • Vermeer® Compatible: Designed for use with compatible Vermeer® HDD equipment.

    Available in multiple sizes.

  • Vermeer® Compatible Bits, Raptor, Small

    Vermeer® Compatible Bits, Raptor, Small

    Vermeer® Compatible Raptor Small Bit

    Designed for demanding horizontal directional drilling applications, the Vermeer® Compatible Raptor Small Bit provides dependable cutting performance in abrasive soils and other challenging ground conditions.

    The Raptor features strategically positioned carbide inserts along the cutting edge to promote smooth, efficient ground penetration while helping reduce snagging. Its angled body design supports consistent cutting and controlled drilling performance through difficult formations.

    Constructed from durable 4140 steel plate, the Raptor Small Bit is built for strength, extended service life, and reliable performance in demanding HDD applications.

    Key Features

    • Carbide Insert Design: Strategically positioned carbide inserts promote smooth, efficient cutting.
    • Angled Cutting Design: Helps reduce snagging while supporting consistent drilling performance.
    • Heavy-Duty Construction: Manufactured from durable 4140 steel plate for strength and extended service life.
    • Built for Abrasive Ground: Designed for abrasive soils and other challenging drilling conditions.
    • Compact Design: Smaller profile for HDD applications requiring a compact bit.
    • Vermeer® Compatible: Designed for use with compatible Vermeer® HDD equipment.

    Available in multiple sizes.

  • Vermeer® Compatible Thrasher Bits

    Vermeer® Compatible Thrasher Bits

    Vermeer® Compatible Thrasher Bits

    Designed for demanding horizontal directional drilling applications, Vermeer® Compatible Thrasher Bits deliver aggressive cutting performance in hardpan, caliche, sandstone, and other challenging ground conditions.

    The Thrasher features aggressive conical carbide cutters positioned at optimized cutting angles to promote efficient ground penetration and dependable drilling performance. The entire perimeter of the bit is protected with carbide-impregnated hard surfacing, providing added wear resistance in tough and abrasive formations.

    Constructed from durable 4140 steel plate, Thrasher Bits are built for strength, extended service life, and reliable performance in challenging HDD applications.

    Key Features

    • Aggressive Cutting Design: Conical carbide cutters promote efficient penetration in difficult formations.
    • Carbide Wear Protection: Carbide-impregnated hard surfacing helps protect the perimeter of the bit in abrasive conditions.
    • Heavy-Duty Construction: Manufactured from durable 4140 steel plate for strength and extended service life.
    • Built for Tough Ground: Designed for hardpan, caliche, sandstone, and other challenging formations.
    • Vermeer® Compatible: Designed for use with compatible Vermeer® HDD equipment.

    Available in multiple sizes.