What Inrock does

Inrock Drilling Systems, Inc. is a Houston-based designer and manufacturer of performance drilling tools, equipment, and guidance systems for the Horizontal Directional Drilling (HDD) industry. Founded in 1993 and operating as a wholly-owned subsidiary of Sweden's Sandvik Group since 2018, the company serves HDD contractors executing underground installations for telecommunications, oil and gas, water, and transportation infrastructure. Its product portfolio spans four categories: pilot-hole tools (HDL Pilot Hole Bits, HDX Premium Tricone Bits, air hammers, mud motors), reaming platforms (the proprietary XTR Extreme Reamer family with interchangeable cutter segments, MXR, XTR-W, XTR-S, standard rock reamers, and barrel reamers), drilling accessories (crossover subs, safety tongs, swivels, centralizers), and guidance/services systems anchored by the patented ParaTrack2 magnetic guidance platform, Gyro Module, Passive Magnetic Ranging, ABIA at-bit inclination assembly, Pressure Module, and Beacon Tracker System. The company also launched the HydroCalc mobile application in June 2025 for HDD hydraulic calculations.

The company operates as a fully integrated manufacturer with in-house design, Finite Element Analysis, API-compliant quality standards, and full material traceability from raw material to finished product, primarily out of its Houston, TX headquarters and manufacturing facility. Inrock distributes through direct regional sales offices in the US, UK, Canada, and Australia, and through Sandvik Mining and Rock Technology's sales teams in Mexico, Brazil, and Colombia — a hybrid model that combines independent direct-sales reach in mature markets with the parent's global channel in emerging geographies. Revenue is generated almost entirely from hardware sales of drilling tools, reaming platforms, and guidance systems under quote-based, multi-year contract pricing, with no public revenue disclosure as a non-reporting subsidiary of Sandvik.

Name

Inrock

Legal name

Inrock Drilling Systems, Inc.

Website

https://inrock.com

Company type

Private

Founded year

1993

Operating status

Operating

Headcount range

251–500 employees

Short description

Inrock designs and manufactures performance drilling tools, reaming platforms, and magnetic/fiber-optic guidance systems for Horizontal Directional Drilling contractors serving telecommunications, oil and gas, water, and transportation infrastructure projects. Founded 1993, Houston-based, operating as a Sandvik subsidiary since 2018.

Ownership category

akta.pro rank

Product category

Horizontal Directional Drilling Tools & Equipment

NAICS

Mining and Oil and Gas Field Machinery Manufacturing (33313), Oil and Gas Field Machinery and Equipment Manufacturing (333132), Pump and Compressor Manufacturing (33391)

SIC

Mining Machinery & Equip (No Oil & Gas Field Mach & Equip) (3532), Construction Machinery & Equip (3531), Drilling Oil & Gas Wells (1381), Construction, Mining & Materials Handling Machinery & Equip (3530)

akta.pro primary industry

Drilling & Rock Excavation Equipment (Rotary/Top-Hammer, Jumbos, Raiseborers) (IMAKANAC)

akta.pro secondary industries

Rock Drilling & Blasthole Drilling Equipment (IMAHAMAC), Directional Drilling & MWD/LWD Services (EUALABAB), Oilfield Equipment Manufacturing & Supply (Wellheads, BOPs, Surface Equipment) (EUALABAL)

Keywords

• Horizontal directional drilling tools
• HDD drilling equipment
• Reaming tools
• Drilling guidance systems
• Trenchless drilling solutions

Headquarters

HQ city

Houston

HQ country

United States

HQ region

North America

Offices6 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales

Revenue model

1. HDD Drilling Tools Sales: Sale of high-performance drilling tools including pilot hole bits, reamers, air hammers, mud motors, and accessories to HDD contractors
2. Guidance Systems and Services: Sale and deployment of guidance technology systems including ParaTrack2, gyro modules, and related steering/navigation services
3. Electronic Data Recorder Systems: CrossView EDR systems for monitoring drilling parameters with real-time data sharing capabilities

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

Inrock designs, manufactures, and sells Horizontal Directional Drilling (HDD) performance drilling tools, reaming equipment, and guidance/surveying systems. Its product portfolio spans pilot hole bits, tricone bits, air hammers, mud motors, XTR family reamers, drilling accessories (crossover subs, safety tongs, swivels, centralizers), and the ParaTrack2 magnetic guidance platform with gyro, ABIA, pressure, and ranging modules, supplemented by the Inrock HDD Hydraulics Calculator mobile app.

Product overview

Inrock is a provider of Horizontal Directional Drilling (HDD) performance tools, equipment, and services. The product portfolio centers on a comprehensive range of drilling tooling organized into four main categories: Pilot Hole products (HDL Pilot Hole Bits, HDX Premium Tricone Bits, Tricone Bits, Air Hammers including the XTH Air Hammer, and Mud Motors), Reaming products (XTR Extreme Reamer platform with interchangeable segments, MXR for large diameter applications, XTR-W and XTR-S variants, Standard Rock Reamers, and Barrel Reamers/Fly Cutters), Drilling Accessories (CrossOver Subs, Safety Tongs, Swivels, Centralizers, and various guidance accessories), and Guidance/Services systems (ParaTrack2 guidance platform with Gyro Module, ABIA, Pressure Module, Passive Magnetic Ranging, Beacon Tracker System, and Steering Tool). The company also offers a complementary mobile application, the Inrock HDD Hydraulics Calculator (HydroCalc) for drilling calculations. Inrock operates as a fully integrated manufacturer with in-house design and production capabilities.

Differentiator

Problem solved

Functional benefit

Brands

• ParaTrack: Guidance technology system for HDD operations including steering, surveying, tracking and pressure monitoring.
• XTR (Extreme Reamer)
• XTR-W
• XTR-S
• MXR
• HDX
• HDL
• XTH Air Hammer
• CrossView

Products and services

• HDL Pilot Hole Bit Durable, cost-effective sealed journal bearing drill bit designed for HDD pilot hole applications in medium and hard formations, with carbide protection and over-gage design for enhanced seal protection in abrasive conditions. Available in sizes from 5½" to 12¼".
• HDX Premium Tricone Bit Premium tricone bit with Tungsten Carbide Insert (TCI) technology and a dual seal offering for hard rock and long-distance HDD crossings.
• Tricone Bits Complete assortment of tricone drill bits for HDD drilling in soft soils to ultra-hard rock using mud motors or steerable jets, with HDD-specific shirttail protection and proprietary seal technology.
• XTH Air Hammer High-efficiency air hammer system designed for HDD applications with spiral piston design, no foot valve requirement, higher penetration rate, and lower air consumption. Available in 3.5", 4", and 5" sizes; equipped with the V-lock component retention system.
• Air Hammers XTH air hammer systems including hammer, sonde housing, adapter, bits, and oiler specifically designed for HDD applications with V-lock system, short feed tube assembly, and robust piston design.
• Mud Motors HDD-specific motors with increased torque capacity of the driveshaft and bearing assembly. Available in sealed and open bearing designs ranging from 3-3/4" to 9-5/8" with fixed and adjustable bend housings.
• XTR (Extreme Reamer) Patented reaming platform with interchangeable segment cutter and durable reusable reamer body enabling multiple uses across multiple bores. Provides MT, TCI, and Premium TCI cutter options for the full spectrum of ground conditions in sizes from 28" to 72".
• MXR Reaming Platform Premium reaming platform for the largest HDD rigs, utilizing 26" cutter segments allowing maximum cut path and reducing reaming passes. Available with MT, TCI, and Premium TCI segments in sizes from 36" to 72".
• XTR-W Reaming Platform Patented reaming platform providing a high-quality alternative to traditional split bit reamers, with replaceable cutters for different geologies including the XTR-W HF Cutter for hard rock. Utilizes Sandvik premium tungsten carbide made in Sweden with FEA-validated tool designs.
• XTR-S Reaming Platform Reaming platform with field-interchangeable cutter segments (TCI and MT) without welding required, allowing a single reamer body to be reused across multiple bores. Available in sizes from 12-3/4" to 24".
• Standard Rock Reamers Standard rock reamers in a wide variety of cutting structures and sizes covering the entire range of HDD rock drilling applications, built with premium third-cutting segments.
• Barrel Reamers / Fly Cutters Premium barrel reamers providing flexibility for push or pull applications in chambered and non-chambered configurations, with custom fly cutters available on request.
• CrossOver Subs The industry's largest inventory of HDD crossover subs, manufactured to API standards with full material certification, including non-magnetic orientation subs, tool connection saver subs, and sizes from 4 1/8" to 8".
• Safety Tongs Portable hydraulic-powered make-up/break-out tong set for safe handling of tough connections, handling torque values from 2,600 ft-lbs to 120,000 ft-lbs with manual or electric pump options.
• Swivels HDD-industry standard swivels provided in partnership with DCD Design, with connection options ranging from 10 to 700 tons and a proprietary sealing system for long life.
• Centralizers Centralizers designed for HDD applications with a tapered design that guides the hole opening assembly through tight spots, minimizes drill string rotary torque and drag, improves reamer performance, and extends cutter life.
• Drilling Accessories (Orientation Subs, Wire Line Spiders, Side Entry Adapters, Collector Rings, Pressure Modules) A range of HDD accessories including non-magnetic and pressure orientation subs, wire line spiders, side entry adapters, collector rings, and pressure modules for HDD drilling operations.
• ParaTrack2 Guidance System AC-powered magnetic guidance tool with lightweight power supply and light gauge wire, providing superior survey quality at deeper depths than competing systems, with state-of-the-art magnetic and gravity sensors, single wire tracking, and integrated magnetic and gyro tracking support.
• ParaTrack Gyro Module Gyro module extending ParaTrack capabilities in magnetically interfered areas, using fiber optic north-seeking gyro sensors effective in hard-rock environments with high vibration tolerance, with verifiable bit position at depths up to 1,500 feet.
• ABIA (At-Bit Inclination Assembly) At-bit inclination assembly embedded in XTM 8" and 6¾" mud motors providing real-time inclination readings directly behind the bit for tight radius bores and hard or fractured formations.
• Pressure Module Real-time annular and drill pipe pressure monitoring module for inadvertent returns detection, usable during pilot hole with the ParaTrack system or as a standalone tool during reaming operations.
• Passive Magnetic Ranging (PMR) Intersect technology for HDD allowing accurate location and intersection of another drill string regardless of depth, built into the ParaTrack2 probe with on/off capability without tripping to surface.
• Beacon Tracker System (BTS) Location-measurement alternative using a 300-foot radius for areas where a surface coil is not possible, providing external tracking reference without surface wires and integrating with other ParaTrack technologies.
• Steering Tool Rugged magnetic guidance tool for medium-to-large HDD rigs that unifies steering, surveying, tracking, and pressure monitoring in one integrated package.
• Inrock HDD Hydraulics Calculator (HydroCalc) Mobile App Mobile application for HDD professionals that calculates Delta P, Jet Velocity, and material displacement, with case comparison, dynamic charting, and unit conversion between metric and US customary systems. Available on Google Play and the Apple App Store.

Quantifiable outcome

• 40-50% reduction in customer reaming time by optimizing reaming pass strategy
• +2 more outcomes

Segments3 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature10 records

Partnerships

One partnership is on record.

• University of AlbertaminorStrategic or Co-development PartnerInrock supports trenchless technology research at University of Alberta under Dr. Alireza Bayat to advance understanding of trenchless construction and train industry professionals.

Scale indicators4 records

Recent moves9 records

Expansion highlights6 records

Direct peers

• Vermeer Corporation: Vermeer is a major manufacturer of HDD drilling rigs and complementary tooling, serving the same HDD contractor customer base as Inrock. While Vermeer is best known for its rigs, its tooling and guidance offerings directly compete with Inrock's pilot hole bits, reamers, and guidance systems in contractor purchase decisions.
• Digital Control Incorporated (DCI): DCI is the leading independent manufacturer of HDD guidance and locating systems (including the DigiTrak product line) and competes head-to-head with Inrock's ParaTrack2 guidance platform, gyro modules, and beacon tracking systems in the same contractor procurement processes.
• Ditch Witch (Charles Machine Works): Ditch Witch is a dominant HDD rig manufacturer and also produces HDD tooling, drill pipe, and locating electronics. Its integrated rig-plus-tooling bundles compete directly with Inrock's standalone tooling and guidance offerings on contractor job sites worldwide.
• Melfred Borzall: Melfred Borzall is a U.S.-based manufacturer specializing in HDD drilling tools, reamers, and downhole tooling. It competes directly with Inrock's pilot hole bits, reaming platforms (XTR, MXR), and accessories within the same HDD contractor channels.
• TT Technologies: TT Technologies manufactures trenchless technology equipment including HDD tooling, pipe ramming, and bursting systems. It overlaps with Inrock's HDD product lines and serves the same utility installation contractors for underground infrastructure projects.
• Subsite Electronics (Charles Machine Works): Subsite Electronics, a Charles Machine Works subsidiary, specializes in HDD locating and guidance electronics, directly competing with Inrock's ParaTrack guidance product family on contractor job sites.
• Barbco: Barbco manufactures HDD tooling, reamers, and ancillary equipment for utility and pipeline installation contractors. Its product range and customer base overlap directly with Inrock's HDD pilot hole and reaming categories.

Emerging players

• Underground Magnetics: Underground Magnetics is a niche HDD guidance and walk-over locating systems provider. While smaller than Inrock's ParaTrack line, it competes in selected guidance categories and represents an emerging alternative for HDD contractors.
• Radius HDD Tools: Radius HDD Tools is a smaller U.S. manufacturer of HDD drilling tools and reamers. While not as broadly diversified as Inrock, it competes in selected pilot hole and reaming categories within the same HDD contractor channel.

Broad incumbents

• Atlas Copco: Atlas Copco is a broad industrial manufacturer with drilling equipment for mining, construction, and infrastructure. Its Power Technique division produces rock drilling tools and trenchless equipment that overlap with Inrock's HDD product portfolio, though HDD is a smaller portion of Atlas Copco's overall business.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/inrockhdd

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Inrock