What size hole saw do I need for a door knob?
| Hole | Size | Where | Note |
|---|---|---|---|
| Knob / deadbolt bore | 2-1/8 in (54 mm) | Through the door face | Standard for US residential |
| Latch bore | 1 in (25 mm) | Door edge, centred in the 2-1/8 in bore | Drill this first from both sides |
| Deadbolt bore | 2-1/8 in | 6-12 in above the knob | Same saw as the knob |
| Strike plate | Chisel, 1 in x 2-1/4 in | Jamb | No saw |
Order of operations: mark both faces with the template, drill the 1 in latch hole from the edge until the point breaks through the face, then use the 2-1/8 in saw from both faces to avoid blowout on the veneer.
Backer matters: hollow-core doors need a light touch and a sharp saw; the cardboard inside collapses if you push.
Hole Saw Set, 8 pcs, M42 bi-metal, 16-40 mm — $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 |
|---|---|---|---|
| Hole Saw Set, 8 pcs, M42 bi-metal, 16-40 mm | $49 | 8 pcs | 900 g |
Order in one step:
POST https://agentkit.ltd/tools/api/order {"product_id":"HS-8","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 |
|---|---|---|---|
| Hole Saw Set, 8 pcs, M42 bi-metal, 16-40 mm | USD 49.00 | 900 g | 7-12 days |