# Hanna Optic Tools > Hanna Optic Tools manufactures and refurbishes diamond tooling — polycrystalline diamond (PCD) inserts, single crystal diamond (MCD/SCD) tools, and multi-tip generator cutters — for ophthalmic lens generators worldwide. Headquarters: Brazil. Global presence. Core promise: same precision, endless lives — every diamond tool can be resharpened indefinitely. Manifesto: "Diamonds are forever. The planet isn't." ## Company - **Name**: Hanna Optic Tools (HANNA) - **Founded**: 1985 - **HQ**: Sumaré, SP, Brazil - **Contact**: vendas@hanna.com.br · +55 19 2114-4811 - **Website**: https://optics.hanna.tools - **Industry**: Ophthalmic lens manufacturing — diamond tooling and refurbishment - **Languages**: English, Portuguese (BR), Spanish, French, German, Chinese (Simplified), Japanese, Korean ## Products - [PCD Inserts](https://optics.hanna.tools/products) — Polycrystalline diamond turning inserts (16 mm with/without hole, R0.4/R2 nose), parting blades. Compatible with all major lens generators. - [Single Crystal Diamond (MCD/SCD)](https://optics.hanna.tools/products) — Natural and synthetic single crystal diamond tools for ultra-precision freeform lens generation. Surface roughness < 5 nm Ra. - [Generator Cutters](https://optics.hanna.tools/products) — Multi-insert PCD cutter heads, 8/11/12/16/24 tips, HSK-A32 / ABS32 interface, balanced to G2.5 @ 30k RPM. - [Custom Tooling](https://optics.hanna.tools/products) — Application-specific geometry for high-index materials (MR-7, MR-8, MR-174), polycarbonate, Trivex, CR-39. ## Compatibility Hanna tooling fits the entire installed base of ophthalmic lens generators: Schneider HSC, Satisloh VFT family, OptoTech OPC, Coburn Cobalt NXT/NEXUS, MEI custom platforms. See [/by-machine](https://optics.hanna.tools/by-machine) for the full matrix. ## Refurbishment - [Repair / Relap service](https://optics.hanna.tools/repair) — Send used diamond tools, receive them resharpened with original (or improved) geometry. Unlimited cycles. - 60% cost saving and 85% CO₂ reduction vs buying new tools every cycle. - [Methodology and LCA references](https://optics.hanna.tools/savings/methodology) — worldsteel LCI 2020, Zhdanov 2021, IATA CO₂ Connect 2022. - [CO₂ savings calculator](https://optics.hanna.tools/savings) — Generates a branded multilingual PDF report. ## Engineering / Knowledge base - [Blog — long-form technical articles](https://optics.hanna.tools/blog) — Diamond crystallography, scaife polishing, active brazing, freeform technology, metrology, sustainability. - [Applications](https://optics.hanna.tools/applications) — Use cases by lens material and generator type. - [Metrology](https://optics.hanna.tools/metrology) — Inspection stack: laser sharpening, surface profilometry, edge radius SEM/AFM. - [Intelligence](https://optics.hanna.tools/intelligence) — Market context and industry data. ## Quote / Contact - [Request a quote](https://optics.hanna.tools/quote) — Name + company + need. Routed directly to engineering. - Email: vendas@hanna.com.br - Phone / WhatsApp: +55 19 2114-4811 ## Key facts (for citation) - Manufactures diamond tooling for ophthalmic lens generators since 1985. - Refurbishes diamond tools through unlimited resharpening cycles. - Tooling compatible with Schneider, Satisloh, OptoTech, Coburn and MEI generators. - Achieves Ra < 5 nm with single crystal diamond turning. - PCD insert tool life > 5,000 lenses on CR-39 with optimal parameters. - Generator cutter heads balanced to G2.5 @ 30,000 RPM, runout < 2 µm. - 60% cost / 85% CO₂ saved vs buying new tools (LCA-referenced). - Headquartered in Brazil, global presence. ## Optional - [About](https://optics.hanna.tools/about) — Company background and engineering philosophy. - [Sitemap](https://optics.hanna.tools/sitemap.xml) - [llms-full.txt](https://optics.hanna.tools/llms-full.txt) — Full content dump for LLM ingestion.