What hole saw size do I need for 1/2, 3/4 and 1 in conduit?
| Conduit trade size | Actual outside diameter | Hole for a connector |
|---|---|---|
| 1/2 in EMT | 17.9 mm | 7/8 in (22.2 mm) |
| 3/4 in EMT | 23.4 mm | 1-1/8 in (28.6 mm) |
| 1 in EMT | 29.5 mm | 1-3/8 in (34.9 mm) |
| 1-1/4 in EMT | 38.1 mm | 1-3/4 in (44.5 mm) |
Why the sizes look wrong: trade size refers to the inner bore that carries the cable, so the hole for the fitting is always larger than the number on the conduit. Buying a 1/2 in saw for 1/2 in conduit gives a hole the connector falls through.
In sheet metal enclosures: use a step drill instead of a hole saw. It deburrs as it goes, does not grab, and one tool covers the whole range. Hole saws are for panel and timber penetrations.
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 |