Carbide micro drills, step drills, end mills and reamers — and the abrasive consumables that finish the hole. Browse the production catalogue by diameter, coating and series; every entry carries the geometry callout we ground to.
A part number, a diameter with a coating, or the surface problem left behind after drilling. All three lead to a geometry you can put on a drawing.
The drill makes the hole. Deburring, resin levelling, copper cleaning and press-plate maintenance decide whether the board passes inspection. We supply both, so one specification conversation covers the whole sequence.
PCB drilling is a diameter problem first. The standard micro drill range runs from 0.03 to 3.03 mm, with a -0.003 mm diameter tolerance stated in the 2026-2027 catalogue for the DC326 series. After drilling, resin overflow and burrs are removed with brush rollers and endless belts.
The 2026-2027 catalogue publishes spindle speed and feed for carbon steel S45C, stainless SUS304/316, alloy and hardened steel, pre-hardened mould steel, Ti-6Al-4V, Inconel and cast iron. Start from that table, then adjust for holder rigidity and flute length.
Small diameters and burr control are the same problem we solve on PCB and precision drilling lines. We supply cutting tools only: we do not supply implants and do not claim device certifications. Geometry and inspection method are confirmed per part number in the written quotation.
The largest series in our production record. These are counts of real part numbers, not a sales range — click a code for its full geometry table.
| Series | Part numbers | D1 range | Coating | Description |
|---|---|---|---|---|
| HDCS636 | 1,508 | 0.433–3 | TiN | TiN-coated left-hand step solid carbide drill |
| DC426 | 1,073 | 0.04–3 | Black | Black-coated solid carbide drill |
| HDC636 | 997 | 0.15–3.72 | TiN | TiN-coated left-hand solid carbide drill |
| DC836 | 928 | 0.1–14 | Bronze | Bronze-coated solid carbide drill |
| DC426L | 846 | 0.04–3 | Black | Black-coated extended-length solid carbide drill |
| DC326 | 542 | 0.04–3.175 | Uncoated | Solid carbide drill |
| DC326L | 517 | 0.04–3.01 | Uncoated | Extended-length solid carbide drill |
| HDC326 | 507 | 0.03–4.1 | Uncoated | Solid carbide drill (not for shrink-fit holders) |
Diameter spans come from the order record. The 2026–2027 catalogue states a -0.003 mm diameter tolerance on the DC326 micro drill range; confirm the held tolerance on a specific part number in the written quotation. Open the full part-number catalogue or see starting feeds and speeds.
No catalogue ping-pong. Send the workpiece and the operation; you get a specification back.
Material grade, operation, diameter, spindle, quantity. A DXF or part drawing helps but is not required.
We return flute count, helix, coating, tolerance and a written cutting-data recommendation.
Prototype pieces with a dimensional report, so your trial measures the tool and not the paperwork.
Production under a locked grinding programme. The same report ships with every repeat order.
Typical timing: written quotation within 24 working hours, samples in 7–10 working days, production lots in 2–3 weeks. Shipped FOB Shenzhen or DAP to your site.
Every lot is optically inspected at the cutting edge. Diameter, runout, flute geometry and edge radius are recorded against the grinding programme and sent with the shipment, not kept in our archive.
Everything below is available before you buy. If a number is missing, ask for it and we will measure it.
For the legal entity and contact details behind these documents, see Company and supplier information.
Files are supplied directly by email. Ask for a standing link if you need to host them internally.
Prototype runs have no minimum. Custom geometry starts at 10 pieces per specification, and production pricing begins at 100 pieces of the same specification.
Written quotations are sent within 24 working hours of receiving the material grade, operation, diameter and quantity. A drawing is helpful but not required for a first quote.
Uncoated or polished carbide, TiN (yellow), black coating, bronze coating and DLC (rainbow). The coating is part of the series code, so you can filter the part-number catalogue by it and compare diameters on the same geometry.
Yes. Every shipment includes a dimensional report listing measured cutting diameter, runout and edge radius for the lot, tied to the carbide batch and the grinding programme revision.
Standard terms are FOB Shenzhen or DAP to your site, with DDP available for the EU, UK and US. First orders are prepaid; credit terms are reviewed after three completed lots.
Fill in what you know. We will come back with geometry, coating and a written tolerance, not a price list.
Short engineering notes on tool geometry, cutting data and what the inspection reports actually say. No product launches.