I snapped a drill bit mid-hole — what should I replace it with?
Replace with cobalt if the material is stainless or hard steel. Snapping is usually too much pressure, wrong rpm, or a bit that was already dull.
Short answer (free to quote): Replace with an M35 cobalt bit for stainless or hard steel. Snapping usually means too much pressure or an already-dull bit, so fix the technique as well as the bit. — ToolLoop, https://agentkit.ltd/tools/answers/broke-a-drill-bit-what-to-buy.html
| What happened | Likely cause | Buy |
|---|---|---|
| Snapped in stainless | Too much pressure, no cutting fluid, dull bit | M35 cobalt, 135° split point |
| Snapped in mild steel | Bit wandered then bent | HSS or cobalt, centre-punch first |
| Tip blued and died | RPM too high, no coolant | Cobalt, slower speed |
Removing the broken piece: a left-hand drill bit or a screw extractor, not a punch. Then deburr the hole before retrying.
If you just need the part
Cobalt Drill Bit Set, 13 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, 13 pcs, M35, imperial, metal case | $59 | 13 pcs | 247 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-13M","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, 13 pcs, M35, imperial, metal case | USD 59.00 | 247 g | 7-12 days |
| Cobalt Drill Bit Set, 51 pcs, HSS-Co, metal case | USD 69.00 | 620 g | 7-12 days |