A Nigerian buyer can source PDC (polycrystalline diamond compact), tricone, and roller-cone drill bits direct from a Chinese factory, landed at Onne on a CFR basis (Cost and Freight — the sea freight is included in the price, and you insure the cargo locally), with the factory qualification and the specification verification already done. That is the whole offer on this page: not a marketplace listing and not a bare freight quote, but a specified bit from a qualified maker, checked before it ships, delivered to your port of entry with the clearance documents prepared. What follows is the supply reality behind that, what good China-direct sourcing actually looks like, and how the bits clear into Nigeria.
Nigeria drills heavily, but it does not manufacture drill bits. The cutting technology inside a bit — the tungsten-carbide inserts, the polycrystalline diamond compact cutters, the bearing assemblies — is made outside Africa, and Nigeria’s own capacity is limited to refurbishment, repair, and recertification of used bits, not new manufacture. So nearly all of it is imported. China is among the largest single origins of that import flow, alongside the United States and Europe, which is why a price-driven buyer who is open to a China-origin bit is a normal part of this market.
The bit market splits cleanly by who serves it. Deepwater and directional work is served by the major service companies, which do not sell a bit as a product at all — they sell a bit run as a service, engineered at the rig and priced on footage or performance. That tier is not reachable by an importer and is not what this page is about. The reachable buyer is the layer below it: onshore Niger Delta independents, workover and small-operator programs, water-well drilling contractors, and mining and exploration contractors. For that buyer, the bit is a purchased consumable, and where it is bought and how it is checked are the whole question.
The risk in a China-origin bit is not the country. Well-made Chinese bits from qualified factories are established products in drilling markets worldwide. The risk is factory selection, because the distance between the best makers and the worst is wide, and a buyer searching from Nigeria cannot easily tell a manufacturer from a trading office, a real certificate from a brochure claim, or a first-grade line from a low-specification one. Good sourcing is a sequence of checks that closes that gap before any money moves past the deposit. The table below is that sequence, and each row leaves a record you keep.
| Check | What is confirmed | The record you receive |
|---|---|---|
| Factory, not trader | Business-registry verification that the company is a manufacturer, who owns it, and that it is registered as it claims — not a trading office reselling another maker's bits. | The registry record. |
| Factory certification | API Spec 7-1 (the American Petroleum Institute specification for rotary drill stem elements, which covers the bit connection), API Q1, and ISO 9001 — checked against the issuing body's own register, not read from a factory brochure. | The certificate check. |
| Quality-first shortlist | Preference for makers that already supply first-grade bits to demanding buyers, including the national oil companies' supply chains, because a factory's most demanding customers show what its best work looks like. | The shortlist basis. |
| Specification match | Your hole size, formation, and IADC code (the standard classification that describes a bit's design) translated into the factory's own nomenclature — cutter grade, blade or cone layout, body type, connection. | The written specification sheet. |
| Pre-shipment inspection | Dimensions, connection gauging, cutter count and grade documentation, and visual or non-destructive checks — done before the balance payment is released, by a third party or witnessed, not by the factory grading its own work. | The inspection report. |
| After the run | The dull grade — the standard record of how the bit wore in your hole — returned to the factory so the next bit is corrected for your formation. | The dull-grade record. |
Two of these steps are worth reading in full elsewhere. The factory-qualification protocol, step by step, is on how we verify a bit factory. The IADC code that carries your bit design from one order to the next — and that lets any qualified factory quote without a follow-up question — is decoded on IADC bit codes explained. If you send the formation rather than a code, the specification match is the step that translates it back into a code.
Bits for the Niger Delta normally enter through Onne, the oil-and-gas port complex near Port Harcourt. Onne is Nigeria’s designated oil-and-gas gateway — it holds the Federal Ocean Terminal and Federal Lighter Terminal inside the Onne Oil and Gas Free Zone, and its container terminal handles the crated and containerized cargo that bits ship as. From there, road freight reaches the onshore field areas quickly. We quote CFR to Onne; your clearing agent handles the import clearance, and we prepare the document set that agent needs before the vessel arrives. The steps below are the ones that govern a bit shipment.
| Step | What it is | Who handles it |
|---|---|---|
| Form M | The import declaration (e-Form M), opened through your authorized dealer bank before the bits ship. The Central Bank of Nigeria requires it for foreign-currency imports; its approved validity for general merchandise runs 180 days. | You and your bank open it; we supply the proforma invoice its figures are set against. |
| Marine insurance | Cover for the sea leg — arranged when the Form M is opened, because the Form M requires a Nigerian marine-insurance certificate. Nigerian law requires the marine insurance on imported goods to be placed with a Nigerian-licensed insurer, which is exactly why we sell CFR (Cost and Freight), not CIF (Cost, Insurance and Freight): the freight is ours, the insurance is yours, placed locally. | You place it locally with a NAICOM-licensed insurer, at the Form M stage. |
| SONCAP | The Standards Organisation of Nigeria Conformity Assessment Programme — a Certificate of Conformity, issued at origin before shipment, confirming a regulated product meets Nigerian standards. | Your clearing agent or SON confirms whether your specific tool is a regulated product; where it is, we arrange the origin certificate. |
| CCVO | The Combined Certificate of Value and Origin (Form C16) — one document stating the shipment's value and country of origin. Its figures must match your Form M. | We prepare it with the shipping documents. |
| PAAR | The Pre-Arrival Assessment Report, issued by Nigeria Customs against your Form M and the shipping documents, and used to assess duty. | Your clearing agent obtains it before the vessel arrives. |
A buyer should be able to check every counterparty rather than rely on a claim. Any Nigerian company you deal with can be looked up on the Corporate Affairs Commission public search by name or RC number (the registration-certificate number), which returns the registered name, the number, and whether the company is active. A local operator you are supplying can be checked against its NUPRC (Nigerian Upstream Petroleum Regulatory Commission) and NipeX registration. On the China side, the factory-registry check above is the same principle applied to the maker, and the SONCAP certificate, where the product is regulated, ties the consignment to a documented conformity assessment. Every one of these is an identifier you can verify, not a promise you have to accept.
On payment, the working structure is 30% with the order and 70% against the shipping documents— no letter of credit required, and the balance moves only once the bill of lading, packing list, and specification records prove what has shipped. That structure fits an importer’s reality, where large upfront transfers are slow to arrange and hard to repeat.
We sell bits into forgiving applications only: onshore Niger Delta wells, workover and small-operator programs, water-well drilling, and mining and exploration. We do not sell into deepwater or directional wells run on integrated service contracts. The reason is application liability. A bit failure at depth on a directional or offshore well costs a great deal for every hour of lost rig time, and the operator needs a field engineer at the rig, not a trader on a phone. That work belongs to the major service companies’ engineered model, and we say so plainly. Stating this boundary is not a weakness in the offer — it is how a buyer knows the offer is honest about where it fits.
Ironstone is a Canadian-registered trading company that treats the checking as the product. On a Nigeria bit order the process is: we qualify the factory, translate your program into a written specification, inspect the finished bits before the balance is paid, and ship CFR Onne with the document set your clearing agent needs. Every step leaves a record that belongs to your order file, not to ours — ask for it before you commit, and do not take our word for the checking. To start, send your bit sizes and formations (or IADC codes) for a China-direct quote landed CFR Onne, and we return a specified bit from a qualified factory, priced.