Can I drill a stack of parts at once instead of one at a time?
| Material | Stack limit | Notes |
|---|---|---|
| Softwood | 3-5 parts, 30 mm total | Brad-point bit, template on top, clamp hard |
| Plywood | 2-3 parts | Exit blowout on the last part, add a backer |
| MDF | 2 parts | Abrasive dust, clear the flutes often |
| Mild steel | 2-3 plates, 6 mm total | Cutting fluid, peck to clear chips |
| Aluminium | 2-3 plates | Watch for chip welding, use a lubricant |
Why it works: the template locates every part at once and the drill only has to be positioned once. Positions match to within the drill wander, which in a stack is smaller because each plate guides the next.
What goes wrong: the stack shifts between holes because the clamp is only on one side. Two clamps, or a carrier board with stops, keeps everything registered for the whole run.
Cobalt Drill Bit Set, 21 pcs, M35, imperial, metal case — $59
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 |
|---|---|---|---|
| Cobalt Drill Bit Set, 21 pcs, M35, imperial, metal case | $59 | 21 pcs | 717 g |
| Cobalt Drill Bit Set, 51 pcs, HSS-Co, metal case | $69 | 51 pcs | 620 g |
Order in one step:
POST https://agentkit.ltd/tools/api/order {"product_id":"DB-21M","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 |
|---|---|---|---|
| Cobalt Drill Bit Set, 21 pcs, M35, imperial, metal case | USD 59.00 | 717 g | 7-12 days |
| Cobalt Drill Bit Set, 51 pcs, HSS-Co, metal case | USD 69.00 | 620 g | 7-12 days |