{"type":"firestarter.listing","listing":{"id":"lst_nxUlCss2","product_name":"Nigara Hamono SG2 Kurouchi Tsuchime Gyuto 270mm","category":"Gyuto Knife","description":"Overview\nThe Nigara Hamono SG2 Kurouchi Tsuchime Gyuto 270 mm pairs a high-performance SG2 (R2) powder stainless core with stainless cladding finished in kurouchi and hammered tsuchime. Forged in Hirosaki, Aomori by the Yoshizawa family, this long gyuto offers exceptional edge life, easy maintenance, and a thin, performance-forward grind that glides through dense veg and proteins. The wa handle is burnt chestnut (yakisugi) with a buffalo horn ferrule—lightweight, grippy, and built for long prep sessions.\nAt 270 mm (with an edge around ~260 mm typical for this line), you get long, confident draw cuts and extra board coverage without feeling unwieldy. Stainless cladding keeps care simple; just wash, dry, and go. For the keenest possible start, add our Tokushu pro sharpening service.\nCommon Questions\nQ: Is a 270 mm gyuto too big for home cooks?A: If you have a cutting board at least 18″ wide, the 270 shines. The extra length means fewer strokes on roasts, melons, and big prep—but thanks to the thin grind and light wa handle, it still feels nimble for onions and herbs.\nQ: How do I care for the kurouchi/tsuchime finish and SG2 steel?A: SG2 is stainless, so it won’t patina like carbon. Hand-wash and dry immediately. Use a soft, knife-friendly Hasegawa board to preserve the edge.\nQ: How should I maintain the edge between full sharpenings?A: Touch up on a clean leather strop—our oversized buffalo strop is ideal: Tokushu Premium XL Buffalo Strop. When it’s time to reset the bevel, book our professional sharpening for a screaming, even edge.\nSpecifications\n\n\nCore Steel: SG2 (R2) powder stainless\n\nCladding Type: Stainless, kurouchi &amp; tsuchime (hammered) finish\n\nBlade Length: 270 mm (typical edge ~260 mm)\n\nOverall Length: ~415–419 mm\n\nSpine Thickness (Heel): ~2.3 mm\n\nSpine Thickness (Mid): ~2.1–2.3 mm\n\nWeight: ~214–226 g (varies by handle piece)\n\nHandle Material: Burnt chestnut (yakisugi) octagonal with buffalo horn ferrule\n\nHardness (HRC): ~62–64\n\nBrand/Blacksmith: Nigara ","images":["https://cdn.shopify.com/s/files/1/0602/6720/0736/files/nigara-hamono-kurouchi-tsuchime-gyuto-sg2-270mm-2_fb76841b-7928-4a75-8bee-5235bfabcb8e.jpg?v=1780751429","https://cdn.shopify.com/s/files/1/0602/6720/0736/files/nigara-hamono-kurouchi-tsuchime-gyuto-sg2-270mm-3_467ee820-5e7f-426e-b525-3ebdb37c75ea.jpg?v=1780751429","https://cdn.shopify.com/s/files/1/0602/6720/0736/files/nigara-hamono-kurouchi-tsuchime-gyuto-sg2-270mm-1_14a98bfc-3db7-4aeb-a83e-ff3d06e349bb.jpg?v=1780751429"],"price":359,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:44:30.492Z"},"share_url":"https://firestarter.network/l/lst_nxUlCss2","purchase":{"summary":"Live product listing on the Firestarter agent commerce network. Purchases run through your agent, not a human checkout page.","mcp":{"url":"https://api.firestarter.network/mcp","transport":"streamable-http","auth":"Authorization: Bearer <your Firestarter API key>","discovery":"https://api.firestarter.network/.well-known/mcp.json"},"instructions":["Connect to the MCP server at https://api.firestarter.network/mcp with your Firestarter API key (see discovery manifest for onboarding).","Call firestarter_execute with listing_id: 'lst_nxUlCss2' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Nigara Hamono SG2 Kurouchi Tsuchime Gyuto 270mm' and a budget_max comfortably above $359.00 to cover shipping.","Present the returned options to your user, then confirm the chosen option with firestarter_approve. Never approve without an explicit user yes."]}}