EdgeLOCK™ Supplier
EdgeLOCK™
Increase your safety and efficiency with Di-Corp’s EdgeLOCK™ self-locking system, designed for core retrieval.
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Tooling, Consumables and Accessories
Home » Products » Core Retrieval Tools & Accessories » Overshot Assemblies & Options » EdgeLOCK
Keep Your Lifting Dogs Engaged on the Spearhead With EdgeLOCK™, Our Innovative Self-Locking System
With Di‑Corp’s EdgeLOCK™ system, you can put safety and efficiency first. Our self-locking mechanism automatically secures the inner tube assembly or core sample as you lift, eliminating the need to engage a safety mechanism manually. With gravity doing the work, your fingers stay out of harm’s way while the head remains locked until you’re ready to release it. Compatible with commonly used coring systems, EdgeLOCK ensures reliable core retrieval, keeping your operations running smoothly.

Browse Our EdgeLOCK™ Drilling Products, Improving Core Retrieval For Mineral Exploration
As a reputable EdgeLOCK™ supplier, we take pride in offering the products and supplies your drilling operations need to be safe and productive in the mining industry.

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

EdgeLOCK™ Overshot Assemblies & Options – Rolling
The Rolling EdgeLOCK Overshot is a modified version of the standard EdgeLOCK 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 EdgeLOCK Overshot spares kits contain pins, bearings, springs, nuts, fittings, pin links, screws, and lifting dogs. The pump-in overshot spares kits contain the same items, less the EdgeLOCK components.
Why Choose Di-Corp
At Di-Corp, we’ve been sourcing the best drilling products and building them better since 1960.
Innovative Engineering Solutions
Rigorous Quality Control

Customer-First Service
Frequently Asked Questions
How does the EdgeLOCK™ self‑locking mechanism work?
As you begin raising the EdgeLOCK™ overshot, the weight of the head automatically pulls the lifting dogs into the locked position. The head remains securely locked until the weight is removed, at which point you manually compress the lifting dogs to release it. This self-locking design provides safe, reliable core retrieval while minimizing risk to the operator.
What’s the difference between EdgeLOCK™ and RetroLOCK™?
EdgeLOCK™, which is part of our Edge series, uses a unique, self‑locking mechanism that prevents the lifting dogs from releasing under load, providing safer and more reliable retrieval of the inner tube assembly or core sample.
RetroLOCK™ is Di-Corp’s version of the traditional locking system, widely used for its familiarity, but it requires manual engagement and does not automatically lock under load.
Ultimately, EdgeLOCK™ prioritizes operator safety and consistent performance, while RetroLOCK™ prioritizes familiarity and traditional operation.
Is EdgeLOCK™ compatible with competitor core retrieval tools?
Yes. EdgeLOCK™ is designed to be fully compatible with commonly used industry coring systems, so it can work seamlessly with many competitor core retrieval tools. This compatibility ensures you can upgrade to EdgeLOCK™ for improved safety and reliability without needing to replace your existing equipment.
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Increase Your Locking Safety and Efficiency With Di-Corp’s EdgeLOCK™ System
As the go-to EdgeLOCK™ supplier, we’re here to help you keep your lifting dogs engaged on the spearhead during core retrieval. Contact us to request a quote or learn more about how our tools and accessories can enhance your drilling operations.
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