Grade Control Drilling

With industry-leading drilling equipment and a commitment to delivering results, we help our clients maintain control over the quality of their resources and ensure project success. 

What sets us apart?

  • Industry-leading fleet and support equipment for seamless project execution.
  • Custom-built digital innovations to provide real-time insights and analytics.
  • A highly skilled and experienced team delivering expertise on every project.

What is Grade Control Drilling?

Grade control drilling is a key process in Australian mining, particularly in the context of ensuring extracted ore meets the quality and quantity specifications required for optimal processing and profitability.

Why Choose Topdrill?

At Topdrill, we prioritise quality outcomes to deliver successful projects for our clients. Our commitment to open communication, combined with highly trained crews allows us to balance productivity without compromising our attention to safety.

Optimised solutions
Our high-performance rigs have been engineered to perform, enabling Topdrill to adapt to our clients specific project needs. Our tailored solutions improve productivity and deliver precise data for confident planning.
Sample Integrity
We prioritise sample quality in every operation. Our services are customised to deliver exceptional performance, ensuring that the sample and drilling data you receive is both accurate and reliable.
Improved Efficiency

With live rig monitoring and real-time data, Topdrill delivers detailed insights that enable streamlined production and allocation of resources, reducing operational costs for greater efficiency.

Let’s break ground together, partner with Topdrill today.
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GRADE CONTROL DRILLING SERVICES

Precise and reliable grade control drilling services tailored to meet your project’s needs.

By integrating industry-leading equipment with a strong focus on performance, we ensure that we deliver results every time. It’s our commitment to quality and safety that positions us as a trusted partner in the mining industry, ensuring you receive reliable results and fostering the long-term success of your drilling program.

Frequently Asked questions

Depths vary based on ore body characteristics, but RC grade control drilling typically reaches 50–300 meters, depending on the project’s needs.

Yes. Topdrill offers grade control drilling using our Schramm 685 with the ability to provide increased performance and depth over smaller traditional-style grade control rigs.

Dual-wall drill rods and high-pressure air systems ensure samples are transported directly from the drill bit to the surface, minimising contamination from surrounding material.

Yes. Topdrill has a D65 track-mounted rig capable of drilling up to 120m in depth.

Topdrill maintains a hands-off steel focus. As the first to adopt hands-free innovation on diamond drilling rigs in Australia in 2014, Topdrill has ensured that every rig has full hands-free rod handling with break-out capability.
Topdrill is a true RC and Diamond exploration drilling specialist with over 20 years experience. We’re proud to be an end-to-end exploration service provider from pad/site preparation, through to core processing and site rehab. We can also offer short or long-term camp solutions, along with camp catering, cleaning, rubbish, and site logistics. It’s our ability to rapidly respond to any issues that arise, combined with 24/7 expert in-field backup and our ability to be on-site in hours, not days with our aviation solution that sets us apart.
Topdrill are specialists in diamond drilling, reverse circulation drilling, grade control drilling, geotechnical drilling, bores and well drilling.

When you partner with Topdrill, you get more than just a drilling contractor – you gain a trusted partner. Transparent, professional communication is at the core of how we operate, ensuring you’re always informed and in control. Our focus is on delivering the best outcomes for your project, with long-term success front of mind.


We combine exceptional leadership, expert backup service, an industry-leading fleet, and real-time monitoring and data analytics to drive smarter, more efficient exploration – making a genuine difference to your project and budget.

Topdrill is part of Togproup, an end-to-end service provider that encompasses Topdrill, JB Contracting, Tophire, and Topcamps to provide a service capability that includes:

  • Pad and site prep
  • Full camp solutions
  • Roading and Civils
  • Water carting and site logistic requirements
  • Rehabilitation of your site including rubbish removal
  • Aviation support solutions
  • Core processing services and facilities
Yes. At Topdrill, we invest in our people, building skilled professionals from the ground up. Our structured career development pathway takes team members from Utility through to Senior Driller over 5–8 years, providing hands-on experience, industry-leading training, and ongoing mentorship. With a strong focus on safety and innovation, we equip our crews with the skills and knowledge to stay ahead in exploration drilling, ensuring a rewarding and future-ready career.

Responsive and Reliable - Minimising Downtime, Maximising Results

Offering a full range of in-house services, Topdrill ensures seamless project execution and complete quality control. By tailoring solutions to your needs, Topdrill consistently delivers efficient, client-focused drilling services throughout Australia.

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