How we verify a bit factory
China manufactures a large share of the world’s drill bits, and quality varies widely from factory to factory. The buyer’s real problem is not whether good Chinese bits exist — they do. It is telling which factory, which grade, and which batch. Verification is the product we sell. This page describes the protocol we use to qualify a bit factory before we quote from it.
Certificates
Checked with the issuing body, not the factory
Quote basis
A written specification sheet
Inspection
Before the balance is paid
Recourse
Warranty terms agreed before the order
The verification protocol, step by step
The steps below describe the process as it runs on a bit order: what is checked, in what order, and what record each check produces.
- Factory screening. Before any quotation, the factory itself is checked. Business-registry verification confirms the company exists as registered, who owns it, and that it is a manufacturer rather than a trading office. Its certificates — API Spec 7-1, API Q1, ISO 9001 — are checked against the issuing body’s own register, not read from the factory’s brochure. We also examine export history and whether the maker supplies first-grade product to demanding domestic buyers, because a factory’s most demanding customers show what its best work looks like.
- Specification translation. Your program — hole size, formation, IADC code or the bit you run today — is translated into the factory’s own nomenclature: cutter grade, blade or cone configuration, body type, connection. This step exists so the quotation is for the bit you actually need, not for the nearest item in a catalog.
- Quotation against the written specification. The quote references a written specification sheet. That sheet — not a catalog photo — is the contract reference the order is checked against at every later step.
- Pre-shipment inspection. Before the balance payment is released, the finished bits are inspected against the specification sheet: dimensions, connection gauging, cutter count and cutter-grade documentation, and visual or non-destructive testing (NDT) checks as applicable. The inspection is third-party or witnessed — it is not the factory grading its own work.
- Dull-bit feedback after the run. When the bit comes out of the hole, its dull grade — the standard record of how the bit wore — goes back to the factory, so the next bit is corrected for your formation. This feedback loop is how the major bit companies improve their products; we run that same loop on your orders.
- Recourse. Agreed at the quotation stage, exercised if a claim arises: warranty terms are set in writing before the order is placed. If a claim comes, you deal with us, and we pursue the factory — the claim is not passed to a manufacturer on another continent for you to pursue alone.
Records
Every step leaves a document
Each step produces a record — the registry check, the certificate verification, the specification sheet, the inspection report, the warranty terms — and those records belong to your order file, not to ours. Ask for them before you commit to anything. Do not take our word for the checking.
Are Chinese PDC bits as good as Western premium bits?
It depends on which tier you are comparing. At the premium directional and offshore tier, the major bit companies sell more than a bit: application engineering at the rig, downhole sensing, and performance-based contracts. That service model is a real difference, and we do not compete in it.
At the water-well, HDD, mining, and vertical-drilling tier, well-made Chinese bits from qualified factories are established products in markets worldwide. At this tier the practical risk is not the country of origin — it is factory selection, because the distance between the best makers and the worst is wide. That is exactly the risk the protocol above addresses.
What do we not do?
We do not place field engineers at your rig. We do not hold same-day stock near your operation. We do not sell performance or footage contracts. What we sell is the product plus the verification described on this page, and it is priced accordingly. If your operation needs an engineer on location or a bit on a shelf an hour away, a local service channel is the right choice — and we will say so.