Our Services

Drilling services, end to end.

From diamond core and reverse-circulation to grade control and geotechnical drilling, BOBJOSH runs every programme to one standard: accurate samples, safe operations and dependable delivery.

Diamond Coring Drilling

Diamond Coring Drilling

A complete surface diamond drilling service with a full range of sizes and capabilities. Our expertise is unsurpassed in West Africa, with an enviable reputation for delivery in hard drilling situations.

  • Full range of core sizes and capabilities
  • Proven delivery in hard ground conditions
  • High-quality, well-logged core recovery
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Reverse Circulation (RC) Drilling

Reverse Circulation (RC) Drilling

Our in-depth knowledge and experience of RC drilling is virtually unsurpassed in the industry. Samples return uncontaminated through the inner pipe to the surface, maximising geological recovery in adverse conditions.

  • Uncontaminated sample return
  • Maximised geological sample recovery
  • Reliable results in difficult ground
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Grade Control Drilling

Grade Control Drilling

An effective tool for adding value to mineral operations, carried out alongside ongoing surface and mining work. It improves efficiency, enhances project management and verifies mined ores.

  • Runs alongside mining operations
  • Verifies mined ore against expectation
  • Improves efficiency and planning
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Geotechnical Drilling

Geotechnical Drilling

Used to determine soil and rock characteristics for a variety of purposes, including construction and soil stabilisation.

  • Defines soil and rock characteristics
  • Supports construction and stabilisation
  • In-situ and laboratory sampling
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Epiroc Explorac 235C

Our drilling fleet.

Our modern fleet is built around premium Epiroc rigs supported by all-terrain crawlers, enabling access to remote and challenging sites while keeping programmes on schedule.

Epiroc Explorac 235C

Rod length
6 m
Drilling depth capacity
0 – 450 m
Max. torque
14,000 Nm
Feed type
Cylinder with chain
Feed force (restricted)
75 kN
Pull force
220 kN
Engine
Cat C18, 522 kW (Tier 3)
Control system
RCS with radio remote

Sectors we serve.

Our crews mobilise for mining, exploration and construction clients across Ghana and the wider West African region.

Mining & mineral exploration
Gold & resource projects
Construction & infrastructure
Geotechnical investigation
Quarrying & aggregates
Soil stabilisation

Planning a project? Let's get your site drilled right.

Tell us about your ground investigation or drilling programme and we will scope it with you.

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