Bit Sections for Hole Openers
Replaceable Cutting Elements for Hole Opener Assemblies
VBM bit sections are precision-manufactured replaceable cutting elements designed for hole opener assemblies used in progressive borehole enlargement. These interchangeable roller cone sections feature milled steel teeth or premium tungsten carbide inserts (TCI) and allow operators to maintain their hole openers in peak condition by replacing only the worn cutting elements rather than the entire tool.
Request a Quote View SpecificationsKey Features
Modular Design
Interchangeable sections, supplied singly or as sets with a full or short shank, enable fast replacement at the rig site without returning the entire tool to the workshop.
Milled Tooth and TCI Options
Available with milled tooth or TCI cutting structures, derived from VBM TCNP, MTR, GRDP and RS roller cone bit designs, to match the soft to medium-hard formations encountered during the reaming operation.
Precision Manufacturing
CNC-machined mounting interfaces ensure accurate fit and secure attachment to hole opener bodies, preventing vibration and premature wear.
Cost-Effective Maintenance
Replacing individual bit sections rather than complete hole openers significantly reduces tooling costs for construction drilling operations.
Technical Specifications
| Parameter | Value |
|---|---|
| Product | Bit Sections for Hole Openers |
| Cutting Technology | Roller cone: Milled Tooth / TCI |
| Source Bit Designs | TCNP / MTR / GRDP / RS |
| Section (Source Bit) Size | 139.7 mm (5 1/2") to 660.4 mm (26") |
| Compatible Reamer Diameters | 311.1 mm (12 1/4") to 1219.2 mm (48") |
| Section Material | Alloy Steel Body |
| Insert Material | Tungsten Carbide (TCI sections) / Milled steel teeth |
| Supplied As | Single section or set of sections |
| Shank Type | Full / Short |
| Formation Hardness | Soft to Medium-Hard |
| Surface Treatment | Hardfacing available |
| Standard Compliance | API / OEM compatible |
| Replacement Interval | Application dependent |
In Stock in Dubai
Bit sections currently held at our Dubai warehouse and ready to ship. Prices on request — press Request price to add the item to the form below.
| Model | Size | IADC | Nozzles | Availability | |
|---|---|---|---|---|---|
| TCNP525Ksection | 5 1/2" (139.7 mm) | 525X | 11 mm | In stock: 9 pcs | Request price |
| TCNP545Ksection | 5 5/8" (142.9 mm) | 545X | 11 mm | In stock: 4 pcs | Request price |
| TCNP545Ksection set | 5 5/8" (142.9 mm) | 545X | 3×11 mm | In stock: 1 pc | Request price |
| TCNP525section | 6 1/2" (165.1 mm) | 525X | 11 mm | In stock: 9 pcs | Request price |
| MTR517section set | 7 7/8" (200 mm) | 517X | 3×16/32 + … | In stock: 1 pc | Request price |
| MTR537section | 7 7/8" (200 mm) | 537X | 24/32 | In stock: 9 pcs | Request price |
| RS617section set | 7 7/8" (200 mm) | — | 3×14/32 + … | In stock: 1 pc | Request price |
| RS617section set | 7 7/8" (200 mm) | — | 3×9/32 + … | In stock: 1 pc | Request price |
| RS617section | 7 7/8" (200 mm) | — | 9/32 | In stock: 1 pc | Request price |
| TCNP525section set | 7 7/8" (200 mm) | 525X | 3×8 mm | In stock: 2 pcs | Request price |
| RS615section set | 8 3/4" (222.3 mm) | — | 3×12/32 + … | In stock: 1 pc | Request price |
| RS615section set | 8 3/4" (222.3 mm) | — | 3×16/32 + … | In stock: 1 pc | Request price |
| TCNP535section set | 11 5/8" (295.3 mm) | 535X | 3×19 mm | In stock: 1 pc | Request price |
| MTR535section | 12 1/4" (311.1 mm) | — | 10/32 | In stock: 3 pcs | Request price |
| RS537section | 12 1/4" (311.1 mm) | — | 15/32 | In stock: 28 pcs | Request price |
Application Areas
HDD Back Reaming
Primary cutting elements for hole opener tools used in HDD back-reaming operations to enlarge pilot holes to final pipeline diameter.
Water Well Reaming
Progressive enlargement of water well pilot holes to the final borehole diameter required for casing and screen installation.
Foundation Drilling
Cutting elements for hole openers used in foundation drilling to achieve target shaft diameters for structural support elements.
Pipeline Installation
Reaming boreholes to accommodate pipeline bundles, conduit arrays, and utility crossings in trenchless construction projects.
Related Products
Request a Quote for Bit Sections
Contact our technical team for pricing, availability, and custom configurations. We provide fast delivery across the UAE and the entire Middle East region.
Bit Sections: Modular Cutting Solutions for Hole Opener Maintenance
Hole openers are essential tools in construction drilling, used to progressively enlarge pilot boreholes to the final diameter required for casing installation, pipeline passage, or foundation construction. The cutting elements on these tools bear the full force of the reaming operation and are subject to significant wear, particularly in abrasive formations. VBM bit sections provide a cost-effective solution for maintaining hole opener cutting capability through modular, replaceable elements.
The modular design of VBM bit sections allows drilling operators to replace only the worn cutting elements rather than returning the entire hole opener for rebuild. This approach reduces both the direct cost of tooling and the operational downtime associated with sending tools off-site for refurbishment. With a supply of spare bit sections on site, operators can restore their hole openers to full cutting capability in a matter of minutes, keeping the drilling operation on schedule.
VBM manufactures roller cone bit sections with two cutting structure options, derived from its TCNP, MTR, GRDP and RS bit designs in source bit sizes from 139.7 mm (5 1/2") to 660.4 mm (26"). Milled tooth sections are cost-effective for soft formations, while TCI sections provide durability in soft to medium-hard rocks. Sections are supplied singly or as sets, with a full or short shank, allowing operators to configure their hole openers for the formations encountered in construction drilling.
VBM Middle East stocks bit sections compatible with major hole opener brands and can also manufacture custom sections to match specific OEM tools. Our engineering team can analyze your worn bit sections and recommend optimal configurations for your formation conditions. Contact our Dubai office for pricing, compatibility verification, and delivery of bit sections for your hole opener maintenance program.