Which tap and die set should I start with — metric or SAE?
| What you work on | Set | Typical sizes |
|---|---|---|
| US-built machinery, vintage tools | SAE (NC/NF) | 1/4-20, 5/16-18, 3/8-16 |
| Imported power tools, bikes, ATVs | Metric | M6, M8, M10, M12 |
| Automotive general | Both | M6-M12 plus 1/4-3/8 |
| Plumbing and pipe | Neither — NPT | 1/8, 1/4, 3/8 NPT |
What a set should contain: taper, plug and bottoming taps in the common sizes, matching dies, a tap wrench, a die stock, and a thread pitch gauge. A set without a gauge cannot tell you which tap to use.
The buying mistake: a 40-piece set that is 40 sizes of one tap style. Count tap styles, not pieces.
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 |