Once the sample and drawing review line up, the RFQ becomes a technical document, not just a price request. Start with a clear specification sheet: contact size, mating contact diameter, current rating, contact resistance target, separation force range, operating temperature, vibration and shock requirements, and expected plating thickness. Add the 2D drawing, 3D model, and a short description of where the connector sits in the medical device. If you need a custom 0.68mm contact or a special gold thickness, say so directly in the RFQ so the manufacturer can quote the correct process and sample plan. Then list the commercial questions that affect project schedule. Ask about MOQ, sample lead time, production lead time, available stock, custom plating options, and the documents the supplier can provide for your technical file. If medical certification is part of design release, ask which certificates are available and how they apply to the exact part number. Treat performance aligned with GJB246, MIL-DTL-83513, and MIL-DTL-32139 requirements as a performance claim, not an official certification, and request the relevant documents before design release. A good manufacturer will answer these questions in writing and tie them to the drawing revision that will be produced. Ximeconn Waterproof Connectors supports 2D and 3D modeling, sampling, and RFQ review for its micro rectangular twist pin connector series. That support works best when your team sends a complete package: drawing, model, target current, plating preference, and environmental requirements. The supplier can then confirm whether the standard 0.68mm twist pin and 0.92mm mating contact fit your design, or whether a custom contact terminal is the better route. Before you send the RFQ, decide which items are fixed and which remain open to supplier feedback. That separation keeps the review focused and helps you compare manufacturers on engineering response, not just unit price.