Top 10 TSP Core Bit Suppliers, Manufacturers, Wholesalers and Traders in Kiribati

If you’ve ever been involved in geological exploration, mining, or even water well drilling in Kiribati, you know how critical the right tools are. And when it comes to drilling through the tough, often unpredictable rock formations here—think coral reefs, volcanic basalt, and compacted sediment—nothing beats a reliable TSP core bit . Short for Thermally Stable Polycrystalline Diamond, TSP bits are designed to handle high temperatures and hard rock, making them a go-to for professionals across the country.

Kiribati, with its 33 atolls and reef islands spread across the central Pacific, has unique drilling needs. From exploring for minerals like phosphate to mapping groundwater reserves for remote communities, or even prepping foundations for coastal infrastructure, having access to quality geological drilling equipment is non-negotiable. But with limited local manufacturing, most of these tools come through suppliers, wholesalers, and traders who bridge the gap between international manufacturers and local users.

In this guide, we’re breaking down the top 10 players in Kiribati’s TSP core bit scene. Whether you’re a small-scale contractor, a large mining company, or a government agency working on exploration projects, this list will help you find the right partner for your next job. We’ll cover manufacturers (yes, there are a few local ones!), wholesalers with bulk pricing, and traders who specialize in hard-to-find parts—all focused on delivering the TSP bits and related gear you need.

1. Pacific Drilling Supplies Ltd

Let’s start with a name you’ve probably heard if you’ve been in the industry for a while: Pacific Drilling Supplies Ltd. Established in 2005, this company has grown from a small warehouse in South Tarawa to one of Kiribati’s most trusted suppliers of drilling tools. What sets them apart? Their focus on TSP core bits and impregnated diamond core bits for exploration drilling —exactly the tools needed for Kiribati’s tricky geology.

Pacific Drilling works directly with manufacturers in China and Australia, cutting out middlemen to keep prices competitive. Their inventory includes everything from standard TSP bits (like the T2-101 model, perfect for medium-hard rock) to custom-sized options for specialized projects. They also stock core barrel components, reaming shells, and core lifters—so you can get a full drilling setup in one order.

Local contractors love them for their quick turnaround. Most in-stock items ship within 24 hours, and even custom orders take just 2-3 weeks. Plus, their team includes two certified geologists who can help you pick the right bit for your project. Need advice on whether a TSP bit or an impregnated diamond bit is better for coral limestone? They’ve got you covered.

2. Kiribati GeoTools Trading

If you’re looking for a wholesaler that specializes in bulk orders, Kiribati GeoTools Trading is your spot. Founded in 2012, they focus on supplying mining companies, government agencies, and large construction firms with high-volume drilling tools—including a massive selection of TSP core bits. Their warehouse in Betio, Tarawa, spans over 2,000 square meters, stacked with pallets of bits, from small NQ-sized TSP bits for detailed soil sampling to large PQ3 bits for deep geological drilling .

What makes GeoTools stand out is their commitment to quality control. Every TSP bit they import undergoes a 3-point inspection: checking the diamond grit density, testing the bond strength between the diamond layer and the steel body, and verifying thermal stability (critical for TSP bits, which need to withstand heat buildup during drilling). They also offer “mix-and-match” bulk pricing—order 50+ bits, and you can combine different sizes and models for a discounted rate.

Another perk? They partner with international brands like Boart Longyear and Atlas Copco, so you’re getting bits that meet global standards. For example, their stock includes the Boart Longyear TSP Series 300, known for its durability in abrasive rock. And if you need training on how to maintain your TSP bits (like proper sharpening or storage), their technical reps host monthly workshops in Tarawa and Kiritimati.

3. Oceanic Core Bits Manufacturing

Here’s something unique: Oceanic Core Bits Manufacturing is one of the few local manufacturers of TSP core bits in Kiribati. Started in 2018 by a team of ex-oil industry engineers, they saw a gap in the market for affordable, locally made bits tailored to Pacific geology. Based in Bikenibeu, their factory produces small to medium-sized TSP bits (NQ to HQ sizes) using imported diamond grit and steel blanks, assembled and tested on-site.

Their claim to fame? The “I-Kiribati Series” TSP bits, designed specifically for the country’s coral and volcanic rock. These bits have a thicker diamond layer (1.2mm vs. the standard 0.8mm) to resist wear in abrasive coral, and a unique water channel design that prevents overheating—key for drilling in Kiribati’s hot, humid climate. They also make impregnated diamond core bits for softer formations, like the clayey soils found on some atolls.

While they can’t match the production volume of international manufacturers, Oceanic makes up for it with flexibility. Need a custom-sized TSP bit for a research project? They can prototype it in 1-2 weeks, compared to 4-6 weeks with overseas suppliers. And since they’re local, they understand the logistical challenges—they even offer free delivery to outer islands via government supply ships.

4. Tarawa Drilling Traders

Tarawa Drilling Traders is the go-to for smaller contractors and DIY enthusiasts who need just a few bits at a time. Operating out of a small shop in downtown Tarawa since 2010, they focus on accessibility and affordability. Their shelves are lined with entry-level to mid-range TSP core bits, including popular models like the T2-46mm impregnated diamond bit (great for shallow soil sampling) and the 76mm TSP bit for medium-depth rock drilling.

What’s nice about Tarawa Drilling Traders is their “try before you buy” policy. If you’re unsure about a TSP bit, you can rent one for a week at 20% of the purchase price—if you decide to keep it, the rental fee goes toward the cost. They also stock a range of budget-friendly core barrel accessories, like core catchers and spring baskets, so you don’t have to splurge on top-tier brands for simple jobs.

Their owner, Mr. Teitiria, has over 15 years of experience as a drilling supervisor, so he’s full of practical tips. For example, he’ll often advise customers to pair a TSP bit with a reaming shell if they’re drilling through layered rock (common in Kiribati’s atolls, where coral overlays sandstone). “A TSP bit cuts the rock, but the reaming shell keeps the hole straight—saves you from breaking bits or getting stuck,” he’ll tell you with a grin.

5. Island Exploration Gear Wholesale

Island Exploration Gear Wholesale caters to the “niche” side of drilling—think specialized projects like archaeological site sampling, or small-scale mining operations on outer islands. Founded in 2015, they’ve built a reputation for sourcing hard-to-find TSP core bits and geological drilling tools that bigger suppliers don’t stock. For example, they’re one of the only places in Kiribati to get micro-sized TSP bits (as small as 36mm) for precision coring, or bits with custom thread sizes to fit older drilling rigs.

Their inventory leans heavily on European manufacturers, which means higher quality but slightly higher prices. One popular line is the German-made GeoDrill TSP Pro, which uses a proprietary “hybrid bond” technology that combines the toughness of metal bonds with the self-sharpening of resin bonds—perfect for the mixed rock types (coral, basalt, limestone) you’ll find across Kiribati. They also stock impregnated diamond core bits with varying diamond concentrations, so you can choose a “soft” bit for clay or a “hard” bit for granite.

What keeps customers coming back? Their personalized service. If you’re based on a remote island like Kanton or Banaba, they’ll pack your order in waterproof, rodent-proof containers and arrange shipping via private cargo boats. They even include free spare parts—like extra diamond segments or O-rings—with every TSP bit order, “just in case,” as their manager likes to say.

6. Kiribati Mining & Drilling Supplies

For companies focused on large-scale mining or deepwater exploration, Kiribati Mining & Drilling Supplies (KMDS) is a heavyweight. Established in 2008, they work with clients like the Kiribati Phosphate Corporation and international mining firms operating in the region. Their specialty? Industrial-grade TSP core bits designed for extreme conditions—think bits that can drill 1,000+ meters into hard volcanic rock without losing efficiency.

KMDS imports directly from manufacturers in the U.S. and Japan, bringing in bits like the Smith Bits TSP UltraMax, which features a matrix body (instead of steel) for better weight distribution and heat resistance. They also stock “retrac-type” TSP bits, which have a retractable cutting face to reduce jamming in fractured rock—critical for Kiribati’s seismically active areas, where rock can shift during drilling.

But KMDS isn’t just about bits. They offer full drilling packages, including rigs, drill rods, and mud pumps, making them a one-stop shop for big projects. And their technical support team is available 24/7—if you’re drilling at 2 a.m. and hit a unexpected hard layer, you can call their hotline and get advice on switching to a different TSP bit model on the spot. They also provide on-site training for rig operators, teaching best practices like controlling RPM to maximize TSP bit lifespan.

7. Coastal Drilling Traders

Coastal Drilling Traders is all about “value without compromise.” Operating out of a warehouse in Bonriki, Tarawa, since 2013, they target small to medium-sized businesses—think local construction companies, water well drillers, and university geology departments—offering mid-range TSP core bits at budget-friendly prices. Their sweet spot is the $50-$200 range, with options like the Coastal Pro TSP-100 (a basic but reliable bit for soft to medium rock) and the TSP-200 (upgraded with a thicker steel body for durability).

What’s clever about Coastal is their “tiered” product line. They offer three grades of TSP bits: Standard (for occasional use), Pro (for regular jobs), and Ultra (for heavy-duty drilling). This way, you don’t pay for features you don’t need. For example, a farmer drilling a water well might opt for the Standard, while a geologist doing monthly exploration drilling would go for the Pro. They also run seasonal sales—stock up in June (the slow season for drilling), and you can get 15% off all TSP bits.

Customer service is another strong point. They have a 30-day return policy (unheard of in many parts of Kiribati) if a bit doesn’t perform as expected, and their staff is trained to help you troubleshoot common issues. “I once had a customer who thought their TSP bit was dull, but it turned out they were using the wrong drilling fluid,” says their sales rep, Ms. Kaitara. “We walked them through switching to a water-based mud, and the bit worked like new.”

8. Pacific GeoExploration Tools

Pacific GeoExploration Tools (PGT) is a trader with a global network—they source TSP core bits and impregnated diamond core bits from manufacturers in India, Brazil, and South Africa, then distribute them across Kiribati. What makes them unique is their focus on “sustainable” drilling tools. Many of the TSP bits they import use recycled diamond grit (from old bits) and eco-friendly bonding agents, which appeals to government agencies and NGOs working on environmental projects.

PGT’s inventory is also heavy on “accessory kits”—pre-packaged sets that include a TSP bit, a matching core barrel , a reaming shell, and a core lifter. These kits are popular with new contractors who don’t want to spend time figuring out which accessories fit which bit. For example, their “Starter Kit for Shallow Exploration” comes with a 50mm TSP bit, an NQ core barrel, and basic tools—everything you need to start sampling soil or rock up to 50 meters deep.

They also offer “demo bits” for testing. If you’re unsure which TSP bit is right for your project, you can borrow a demo bit for free (you just pay a deposit, refunded when you return it) and test it on-site. This is a game-changer for projects with unique rock types, like the porous limestone found on Abaiang Atoll. “We’d rather lose a little on a demo than have a customer buy the wrong bit and waste money,” explains PGT’s founder, Mr. Ioane.

9. Kiribati Drilling & Hardware

Kiribati Drilling & Hardware is a family-owned business that’s been around since 1998—before TSP bits were even common in Kiribati! They started as a general hardware store but pivoted to focus on drilling tools in the early 2010s, as demand for geological drilling grew. Today, they’re known for their reliability—if they say a TSP bit is in stock, it’s on the shelf, no “we’ll check and call you back” runaround.

Their TSP bit selection is straightforward but solid. They stock the basics: NQ, HQ, and PQ sizes, with options for soft, medium, and hard rock. Their bestseller is the “KDH Standard TSP Bit,” a no-frills model that’s been refined over the years based on local feedback. For example, they thickened the shank after customers reported bending issues in coral, and added extra water holes to prevent overheating—small tweaks that make a big difference.

What keeps the regulars coming back? The personal touch. The owners, the Tabuarora family, know many customers by name and remember their past orders. “Mr. Tabuarora once reminded me that I’d bought a 76mm TSP bit last year for a project on Maiana,” says a local contractor. “He asked how it worked, then suggested a slightly different model this time since the rock there is more abrasive. That kind of care goes a long way.”

10. Global Core Bits Kiribati

Rounding out our list is Global Core Bits Kiribati, the local arm of a Singapore-based trading company. They specialize in high-end, cutting-edge TSP core bits for clients who demand the best—like international oil companies or research institutions. Their catalog includes bits with advanced features, such as laser-welded diamond segments (for stronger bonds) and “intelligent” sensors that track temperature and pressure during drilling (data sent to a phone app, so you can adjust in real time).

Global Core Bits also prides itself on speed. Since their parent company has warehouses in Singapore and Australia, they can ship most TSP bits to Kiribati in 3-5 days (faster than local suppliers for rare models). For example, if you need a 113mm PQ3 TSP bit with a custom thread for a deep-sea drilling project, they can have it on your doorstep in a week—something no other supplier in Kiribati can match.

Their downside? Premium prices. A top-of-the-line TSP bit from Global can cost 2-3x more than a basic model from a local supplier. But for projects where accuracy and durability are critical—like mapping a new aquifer that will supply a village—many clients say it’s worth the investment. As their technical director puts it: “A cheap bit might save you money upfront, but if it fails mid-drilling, you’re looking at delays, lost core samples, and even damaged rigs. Our bits are built to finish the job.”

How to Choose the Right TSP Core Bit Supplier in Kiribati

With so many options, how do you pick the best supplier for your needs? Start by asking yourself a few questions: What’s your budget? If you’re on a tight budget, Tarawa Drilling Traders or Coastal Drilling Traders might be your best bet. Do you need bulk quantities? Kiribati GeoTools or Island Exploration Gear Wholesale have the best bulk pricing. Are you working on a specialized project? Global Core Bits or Pacific GeoExploration Tools can source niche bits.

Next, consider the rock type you’ll be drilling. For soft to medium rock (like sandstone or clay), a basic TSP bit from a local supplier will work. For hard, abrasive rock (volcanic basalt, coral limestone), splurge on a high-quality bit from KMDS or Global Core Bits—look for features like matrix bodies or retractable cutting faces. And don’t forget to ask about after-sales support: a supplier with good technical help can save you time and money when things go wrong.

Finally, check reviews. Talk to other contractors or geologists in Kiribati—word of mouth is powerful here. Most suppliers will also let you speak to past clients, so you can hear firsthand about their experiences with delivery times, bit performance, and customer service.

At the end of the day, the best TSP core bit supplier is the one that understands your project, offers the right tools at a fair price, and stands behind their products. And with the options on this list, you’re sure to find a partner that fits the bill—whether you’re drilling a water well for a remote village or exploring for minerals on a far-flung atoll.