Down Hole Core Retrieval Tools, Adapter Subs & Accessories

Get more rock in the box every shift! Increase the productivity of your drilling operations and maximize core retrieval regardless of ground conditions with Di-Corp’s smooth-operating in-hole coring tools, adapter subs and accessories.

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    Drilling Fluids & Additives

    In-Hole Core Retrieval Tools, Backed By Decades Of Diamond Core Drilling Expertise

    Members of Di-Corp’s engineering, manufacturing, and field service teams draw on their extensive mineral exploration drilling experience to ensure that our in-hole core retrieval tools operate smoothly, latch positively, and keep your rig turning for maximum productivity. Drillers Edge Core Retrieval Tools by Di-Corp offer:

    • Surface and Pump-In Core Barrel Assemblies
    • Complete compatibility with the industry’s leading coring systems
    • Durable, reliable operation
    • Ready access to replacement parts and spares
    • Two core barrel latching options – the Edge RetroLatch, Di-Corp’s version of a widely used traditional latching system; and Di-Corp’s own Edge Latch, a core barrel latching system that delivers smoother operation, less wear, and virtually eliminates stuck tubes.

    A Top-of-the-Line Core Retrieval Product Collection

    We offer a complete range of core retrieval tools and accessories compatible with industry-leading coring systems coring systems that offer enhanced functionality in drilling operations.

    Adapter Subs

    Di-Corp stocks the most commonly used adapter subs used in the exploration drilling industry. Our available adapter configurations include B, N, H and P.

    Core Barrel Assemblies & Options

    Di-Corp’s Surface Core Barrel offering includes standard sizes from B to P, and the Pump-In Core Barrel includes B to H. All Core Barrel Assemblies are supplied with the Edge-Latch Head Assembly and Conventional Locking Couplings.

    Core Barrel Head Assemblies & Options

    The EdgeLatch Head Assembly is a robust, reliable tool that is supplied complete with landing indication and is fully compatible with the industry leader. The EdgeLatch latching system provides an enhanced mechanism for retracting the latches, which lessens the chances of sticking a tube.

    Core Barrel Conversions

    Di-Corp offers several Core Barrel Conversion assemblies. One allows for a seamless transition from the industry-leading core barrel assembly to the enhanced Edge Latch Core Barrel by replacing only a handful of simple components. Another comes fully assembled and replaces all components.

    Core Barrel Kits

    Di-Corp offers both gravity and pump-in systems in double and triple-tube configurations. We have incorporated a number of product improvements to ensure you remain productive, including Edge Latch for improved locking and unlocking, shielded bearing, latch locking for up-hole drilling, inner tube, and more.

    Extended Core Barrel Options

    Di-Corp has a solution for extending your standard Core Barrel. Whether you’re coupling two standard Core Barrels together or simply extending an Inner Tube Assembly to match a stabilized Reaming Shell, Di-Corp has what you require to get the job done.

    Overshot Assemblies

    The Edge-Lock Overshot is a simple, self-locking, compatible solution to retrieving the Inner Tube Assembly efficiently and reliably. When drilling down holes, the unique Edge-Lock mechanism housed within the Overshot Head ensures that the lifting dogs are physically unable to release the spearhead.

    Overshot Assemblies – Rolling

    The Rolling Edge-Lock Overshot is a modified version of the standard Edge-Lock Overshot. It is normally used when the hole angle approaches 45° and the overshot descent time is compromised by friction between the Overshot Assembly and the inside diameter of the drill string.

    Overshot Spares

    Overshot Spares include all of the most commonly consumed Overshot wear components. The Edge-Lock Overshot spares kits contain Pins, Bearings, Springs, Nuts, Fittings, Pin Links and Screws, as well as Lifting Dogs. The Pump-In Overshot spares kits contain the same items, less the Edge-Lock components.


    Why Choose Di-Corp

    Di-Corp is an industry leader in the manufacturing and distribution of specialized equipment, tools, and accessories for the energy, mining, and drilling industries. In fact, we are the only tooling manufacturer serving the diamond core drilling industry that also manufactures and distributes its own line of drilling fluids and additives.


    Di-Corp is your one-stop source for all drilling consumables - from the drill rod to downhole tools, diamond core bits and reaming shells, adapter subs and locking couplings, drill rod grease, and drilling fluids and polymers. We manufacture and supply it all at quality levels second to none, and we can assist in all aspects of your drilling operations with decades of drilling knowledge, fluids engineering, and customer-focused 24/7 service.

    Quality Management

    At Di-Corp, our manufacturing quality assurance/QC process is one of the most stringent in the industry. Our process starts with certificates of authenticity for inbound raw materials. Then, all manufacturing runs through batch testing with field service ready to support application opportunities, problems, or other obstructions.

    Integrated Tool Safety

    Our in-hole core retrieval accessories and tools are designed with safety and productivity top of mind. These tools provide positive locking of the overshot that ensures they cannot loosen from any vibrations–keeping your operations running safely and smoothly. For more information on the benefits and features of our Edge Latch, watch our Youtube video.

    Frequently Asked Questions

    Are Drillers Edge by Di-Corp in-hole core retrieval tools compatible with other manufacturers?

    Yes, our in-hole tools are designed and manufactured to be compatible with tooling and diamond core drilling equipment from some manufacturers. Check with your sales representative for further details. However, it is important to note that with respect to coring rods and subs, we never recommend mixing and matching with other manufacturers’ thread forms. We do recommend pairing our in-hole core tooling with Drillers Edge drill rod by Di-Corp.

    Improve Drilling Operations With Quality In-Hole Core Retrieval Tools & Accessories

    Serving the international diamond core drilling sector, Di-Corp proudly manufactures and distributes the quality in-hole tooling you need to save time while maximizing your productivity and core retrieval. Browse through our in-hole tooling and accessories and request a quote today.