What is the best lubricant for tapping?
| Material | Fluid | Note |
|---|---|---|
| Mild steel | Sulphurised or chlorinated tapping fluid | Paste is better than thin oil on vertical holes |
| Stainless | Heavy tapping paste, generous | Never tap stainless dry |
| Aluminium | Kerosene, WD-40, or light oil | Thin fluids stop the chip welding |
| Brass | Light oil, or dry | Dry is acceptable |
| Cast iron | Dry | Fluid makes graphite paste that clogs flutes |
How much: a drop on the tap and a drop in the hole per half turn on deep holes. Flooding a blind hole does nothing except push chips back down.
Technique outranks fluid: start square, two turns forward, half turn back to break the chip, and clear the flutes on every third pass.
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 |