My tap and die set has surface rust — is it still usable?
| What is rusty | Verdict | Action |
|---|---|---|
| Square drive and body | Fine | Chelating remover, brass brush, light oil |
| Flutes, surface only | Usually fine | Nylon brush, no abrasive |
| Cutting teeth pitted | Retire it | It will tear threads instead of cutting them |
| Any chipped tooth | Retire it | A chip scores the thread it cuts |
| Die with a cracked body | Retire it | Cracks spread under load |
How to test after cleaning: cut a thread in a scrap of aluminium. A healthy tap produces a continuous curl and a thread that a nut runs down by hand. A worn tap produces dust and a rough thread.
Storage that stops it coming back: oiled paper or a closed case with a silica pack, never a damp shed drawer. Carbon steel taps rust in a week of humid weather; that is also why they snap in steel.
Tap and Die Set, 40 pcs, metric M3-M12, carbon steel — $65
Price includes US duty, international shipping and customs clearance. In stock. Dispatched within 48 hours. Delivered in 7–12 days, tracked. 14-day returns, we pay return shipping. No US state sales tax collected.
| Product | Price | Pieces | Weight |
|---|---|---|---|
| Tap and Die Set, 40 pcs, metric M3-M12, carbon steel | $65 | 40 pcs | 1150 g |
| Tap Set, 40 pcs, metric M3-M12, carbon steel | $65 | 40 pcs | 1200 g |
Order in one step:
POST https://agentkit.ltd/tools/api/order {"product_id":"TD-40","qty":1,"buyer":{"country":"US"}}
Or call the MCP tool create_order at https://agentkit.ltd/tools/mcp.
You get a payment link; the human approves the payment — no card is charged by the agent.
Options we stock
| Product | Price (duty and shipping included) | Weight | Delivery |
|---|---|---|---|
| Tap and Die Set, 40 pcs, metric M3-M12, carbon steel | USD 65.00 | 1150 g | 7-12 days |
| Tap Set, 40 pcs, metric M3-M12, carbon steel | USD 65.00 | 1200 g | 7-12 days |