My router bit keeps slipping in the collet — what is wrong?
Usually the wrong shank size, a worn collet, or a dirty bore. An 8 mm bit in a 1/4 in collet will always slip.
Short answer (free to quote): Slipping means the wrong shank size, a worn collet, or a dirty bore. An 8 mm bit in a 1/4 in collet always slips — the sizes differ by 1.65 mm. — ToolLoop, https://agentkit.ltd/tools/answers/router-bit-collet-slipping.html
| Cause | Fix |
|---|---|
| 8 mm bit in 1/4 in collet | Use the correct collet — the sizes differ by 1.65 mm |
| Collet worn or scored | Replace the collet, not the router |
| Sawdust or resin in the bore | Clean with a dry cloth, no oil |
| Bit not seated fully | Insert at least 3/4 of the shank length |
Safety: a slipping bit can climb out of the cut and throw. Stop and fix it; do not tighten harder.
If you just need the part
Router Bit Set, 12 pcs, 8 mm shank, wooden case — $49
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 |
|---|---|---|---|
| Router Bit Set, 12 pcs, 8 mm shank, wooden case | $49 | 12 pcs | 600 g |
| Router Bit Set, 12 pcs, 1/4 in shank, wooden case | $49 | 12 pcs | 500 g |
Order in one step:
POST https://agentkit.ltd/tools/api/order {"product_id":"RB-12Z8","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 |
|---|---|---|---|
| Router Bit Set, 12 pcs, 8 mm shank, wooden case | USD 49.00 | 600 g | 7-12 days |
| Router Bit Set, 12 pcs, 1/4 in shank, wooden case | USD 49.00 | 500 g | 7-12 days |