Do I need spare pilot drills and arbors for my hole saws?
| Part | Failure rate | Spare to keep |
|---|---|---|
| 1/4 in pilot drill | High, snaps on breakthrough | Two |
| Arbor with 1/2-20 thread | Low, but blocks everything | One |
| Arbor with 5/8-18 thread | Low | One if you run large saws |
| Pilot drill retaining screw | Lost often | Two |
| Saw itself | Moderate | Replace as it wears, not as a spare |
Why the pilot goes first: it is the smallest, most highly stressed part in the setup and it takes the side load when the saw grabs. It also hits the far side of the workpiece first, which is where bits break.
Thread matching: arbors and saws are sold separately and the threads differ between sizes. Buying a second arbor of the wrong thread is the most common wasted purchase in hole saw work.
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 |