What size auger bit should I use for running wire through studs?
| Cable run | Hole | Note |
|---|---|---|
| One 14/2 or 12/2 | 5/8-3/4 in | Leaves room to pull |
| Two cables | 3/4 in | Most common choice |
| Three or more | 1 in | Do not exceed 40% of stud depth |
| Conduit through plate | Match the conduit OD | Bush the edge |
The rule that gets inspected: holes must be at least 1-1/4 in from the nearest stud edge. Closer than that and the cable needs a steel nail plate. Check your local code before drilling a whole wall.
Tool: an auger bit with a screw point, in a right-angle drill for tight stud bays. Clear the flutes every few inches — packed chips are what stalls the drill.
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 |