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our company can supply the half round diamond file in the 12-inch length you mentioned, with the 120# grit being the standard for mold and crafts work — 304mm of usable edge on a 400mm total length.
It’s carbon steel with a diamond coating and a nickel-plated exterior finish, so the coating won’t peel off easily during grinding, and the plastic handle helps reduce hand fatigue on longer deburring runs.
We usually keep around 500 pieces in stock for the 12-inch size, but for custom orders the lead time is about 15 working days give or take; we’ll send you the COA with HPLC data on the nickel plating thickness if your quailty team asks for it.
Payment is typically 30% upfront via T/T with the balance before shipment, and we ship via DDP if you want door-to-door — just confirm whether you need 6-inch or 8-inch sizes in teh same grit, because those ship faster since we’ve got more inventory on the smaller ones.
Some buyers use this for hardened alloy trimming, but it’s not ideal for continuous heavy stock removal since diamond coating is about 0.3mm thick — better for finishing passes and detail polishing.
So if you’re good with those specs, let me know the quantty — MOQ is 100 pieces and we’re happy to consolidate sizes on one pallet.
We offer four sizes: 6", 8", 10", and 12". The 12" version has a file length of 304mm and a total length of 400mm—great for larger mold work.
Our MOQ is typically 500 pieces for factory wholesale orders, but we can negotiate smaller batches for first-time buyers or sample requests.
We can provide a material certificate for the carbon steel and diamond coating, plus a packing list. If you need specific third-party testing or a CoC, just let us know—we can arrange it for an extra fee.
Yes, we offer customization on handle color or material, and we can also adjust the nickel-plating finish. Just share your specs and we'll work out the details.
Store it in a dry place, away from moisture, to prevent rust on the carbon steel. A plastic case or pouch works well—avoid tossing it loose with other tools to protect the diamond coating.
Outstanding experience from start to finish. The logistics were incredibly efficient; my order was processed and dispatched promptly, arriving well ahead of the estimated delivery schedule. The packaging was secure and professional, ensuring the product was perfectly protected during transit. Regarding quality, the file feels exceptionally robust and well-made. The nickel plating appears uniform and durable, and the carbon steel construction promises excellent longevity. The diamond abrasive surface on the half-round shape seems precisely applied and consistent. In terms of service, the communication was clear, and any pre-purchase inquiries were answered quickly and helpfully. Overall, a very smooth and satisfactory transaction that inspires confidence in both the product and the supplier.
Fantastic experience from start to finish. The shipping was incredibly fast, arriving well ahead of the estimated delivery window, which was a pleasant surprise. The items were packaged securely with no risk of damage during transit. Regarding quality, the files feel exceptionally sturdy and well-made. The nickel plating appears uniform and durable, promising good corrosion resistance. The grit feels consistent across the surface, exactly as one would hope for precise grinding work. Customer service was also commendable; they were responsive and helpful when I had a pre-sale inquiry about the multi-size options. Overall, a very smooth transaction and high confidence in the product’s construction. I would not hesitate to order from this supplier again for professional tools.
I received the diamond half round files much sooner than anticipated. The shipping was incredibly fast and the package arrived in perfect condition. Regarding quality, the files feel substantial and well-made. The nickel plating appears even and durable, and the carbon steel base seems robust. The grit is consistent across the surface. The seller provided clear communication throughout the process, promptly answering my pre-purchase questions about sizing. The items were securely packaged to prevent any damage during transit. Overall, I am very satisfied with this transaction and the professionalism displayed.
Rapid shipping and secure packaging were the first things I noticed. The order arrived ahead of schedule, which was a pleasant surprise. The items were well-protected, preventing any damage during transit. Regarding quality, the files feel substantial and well-made. The nickel plating appears even and durable, and the grit seems consistent across the surface. The service from the supplier was efficient and professional; communication was clear throughout the process. Overall, a very satisfactory experience with the logistics and the initial quality inspection of the products. The presentation and delivery met all expectations.
I recently received my order of the multi-size diamond half round files, and I must say I am thoroughly impressed with the overall experience. The shipping was incredibly fast; the package arrived well ahead of the estimated delivery date, which was a pleasant surprise. Everything was securely packaged, with each file individually wrapped to prevent any damage during transit. The quality of the files is outstanding. They feel sturdy and well-made, with a consistent nickel-plated finish that looks both professional and durable. The grit is uniform across all surfaces, promising effective grinding for various crafts. Customer service was also commendable; they were responsive and helpful when I had a query about the order. This purchase has been smooth from start to finish, and I would not hesitate to recommend this supplier to others looking for reliable grinding tools.
Just outstanding service from start to finish! The logistics were handled with impressive speed and precision. My order arrived far sooner than anticipated, and the packaging was exceptionally secure, ensuring every item was in perfect condition upon arrival. Jumping to the quality, it is simply superb. The files feel substantial and well-made, exactly as described. The nickel plating appears flawless and durable. Regarding customer service, they were genuinely helpful and responsive, making the entire process smooth and worry-free. Juggling multiple projects, I appreciate reliable tools and suppliers, and this experience has been excellent on all fronts. I will definitely be ordering again.
Just received my order today and I am thoroughly impressed with the shipping speed. The package arrived much earlier than the estimated delivery date, which was a pleasant surprise. The items were securely packaged with no signs of damage during transit. Regarding quality, the files feel sturdy and well-made, exactly as described. The nickel plating looks uniform and professional. As for service, the communication was clear and prompt, making the whole process smooth. Overall, a very satisfactory experience from start to finish. I would definitely consider purchasing from this supplier again in the future based on this positive interaction.
Delivered with impressive speed, the shipping was remarkably prompt and well-handled. Packaging was secure, ensuring the product arrived in perfect condition without any delays or issues. The quality of the file feels robust and durable, with a solid construction that suggests it will withstand rigorous use over time. Customer service was responsive and helpful, providing clear updates and assistance when needed. Overall, a very satisfactory experience from start to finish.
Quick delivery and excellent packaging. The items arrived securely wrapped with no damage whatsoever. Quality appears very solid right out of the box; the nickel plating looks uniform and the files feel substantial in hand. Customer service was responsive when I had a pre-shipment question. Overall, a very smooth transaction from a supplier that seems reliable. Would consider ordering again for future project needs based on this positive experience. The logistics were handled efficiently, which is always a priority for me.
