Replaceable Roller Bit
DRILLNOVA Replaceable Roller Bits are field-serviceable cutter modules for HDD and microtunneling reaming tools. A slot-pocket mounting system with three bolts and spring locks supports secure
DRILLNOVA wear parts support the maintenance and configuration of HDD cutting and reaming tools across soil, mixed ground and hard rock. Replaceable roller bits restore roller-cone cutting capability, while weld-on teeth help contractors build, repair or adapt cutting profiles for specific ground conditions. Confirm the tool body, mounting arrangement and formation before selecting a replacement part.
DRILLNOVA Replaceable Roller Bits are field-serviceable cutter modules for HDD and microtunneling reaming tools. A slot-pocket mounting system with three bolts and spring locks supports secure
DRILLNOVA Weld-On Teeth provide replaceable cutting and wear points for HDD reamers and trenchless tools. Eight DR and DT profiles are available with documented dimensions, nominal
Wear-part selection begins with the ground, but it must also account for the existing tool body and mounting system. Use the factors below to narrow the product family, then confirm the exact model and installation requirements with DRILLNOVA.
Identify whether the cutting structure will work mainly in cohesive soil, granular material, mixed ground, weathered rock or competent abrasive rock.
Match the replacement part to the approved pocket, holder, bolt pattern, shaft arrangement or weld-on location on the tool body.
Confirm that cutter shape, projection and placement provide the required face coverage and cutting action for the intended tool configuration.
Consider expected wear, inspection intervals, field-replacement access and the spare quantities needed to keep the job moving.
DRILLNOVA checks replaceable roller bits and weld-on teeth for condition, dimensional consistency and mounting compatibility before shipment. The exact inspection points depend on the part type and its approved tool configuration.
Verify the model designation, orientation and compatible tool assembly against the approved product information.
Check pockets, holders, fasteners and surrounding surfaces for wear, deformation, cracking or material loss before installation.
Use the specified fastening or welding procedure and qualified personnel for the selected component and tool body.
Record wear patterns and replacement intervals so future spare-part planning can reflect the actual formation and operating conditions.
Compare roller-bit and weld-on-tooth options after the formation, tool body and mounting arrangement have been identified.
Send the tool type, current part number, mounting details and ground conditions for an application review.
Tell us about your ground conditions, bore requirements or tooling needs. Our HDD tool specialist will review your information and recommend the appropriate next step.
For faster review, include the tool type, bore diameter, ground conditions, drill rig and required connection when available.
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