{"type":"firestarter.listing","listing":{"id":"lst_lwp0H-Q-","product_name":"Powerbuilt 12 Millimeter Back-Tap Thread Repair Tool - 641148","category":"Threading and Extracting Tools","description":"Do you have fouled damaged threads due to old spark plugs? You need to straighten those threads without dropping engine-killing metal shavings into your cylinders, or without removing the cylinder heads, and no risky thread inserts. You need Powerbuilt’s patented 12 Millimeter Back-Tap Thread Repair Tool to save time and possibly that engine. The Back-Tap's patented collapsible design allows it to engage be placed through the spark plug hole and into the chamber. A mandrel is then drawn back, expanding the tool's threaded area and threading into the clean threads at the bottom of the spark plug hole. The innovative Back tap repairs the damaged thread as it is drawn up through the spark plug hole, bringing debris and metal filings with it. Meets or exceeds ANSI standards. Lifetime warranty.","images":["https://cdn.shopify.com/s/files/1/0443/2681/3852/files/641148-01.jpg?v=1774528735","https://cdn.shopify.com/s/files/1/0443/2681/3852/files/641148-03.jpg?v=1774528735","https://cdn.shopify.com/s/files/1/0443/2681/3852/files/641148-04.jpg?v=1774528735","https://cdn.shopify.com/s/files/1/0443/2681/3852/files/641148-05.jpg?v=1774528735","https://cdn.shopify.com/s/files/1/0443/2681/3852/files/4118_20Steel.png?v=1774528735","https://cdn.shopify.com/s/files/1/0443/2681/3852/files/b0014fgvvw.pt05.jpg?v=1774528735","https://cdn.shopify.com/s/files/1/0443/2681/3852/files/641148-02.jpg?v=1774528735"],"price":30.95,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:27:13.283Z"},"share_url":"https://firestarter.network/l/lst_lwp0H-Q-","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_lwp0H-Q-' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Powerbuilt 12 Millimeter Back-Tap Thread Repair Tool - 641148' and a budget_max comfortably above $30.95 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."]}}