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Drainage / Pipe Connection Tools
Inserta Tee Hole Saws
Manufacturer-matched hole saw bits sized for a watertight, air-testable Inserta Tee fit. Free shipping.
The Inserta Tee hole saw line is engineered specifically to core the exact hole a watertight Inserta Tee fitting requires. A standard, generic hole saw will not produce the fit needed to pass pressure and air testing — and using a third-party bit voids the Inserta Tee warranty. Match your fitting size to the correct saw below.
Why the Right Hole Saw Matters
An Inserta Tee makes its watertight seal by compression-fitting into a precisely cored hole. If the hole is the wrong diameter — even slightly — the rubber sleeve can't compress correctly and the connection won't pass pressure or air testing. That's why each Inserta Tee size has a specific, oversized hole saw dimension that a standard hardware-store bit doesn't match.
Test-Ready Fit
Cores the exact diameter the Inserta Tee sleeve needs to seal for a watertight, air-testable connection.
Protects Your Warranty
Using a third-party or generic hole saw voids the Inserta Tee manufacturer's warranty. Matched bits keep it intact.
Clean, Repeatable Cores
Purpose-built arbors and blades bore clean holes in PVC, HDPE, concrete, and corrugated pipe alike.
Inserta Tee Hole Saw Sizing Chart
Match your Inserta Tee fitting size to the required hole saw diameter. The saw is intentionally larger than the fitting so the rubber sleeve compresses to seal.
| Inserta Tee Size | Required Hole Saw Size |
|---|---|
| 2" (51 mm) | 2 ⅝" (67 mm) |
| 3" (75 mm) | 3 ¾" (95 mm) |
| 4" (100 mm) | 4 ½" (114 mm) |
| 6" (150 mm) | 6 ½" (165 mm) |
| 8" (200 mm) | 8 ¾" (222 mm) |
| 10" (250 mm) | 10 ⅞" (276 mm) |
| 12" (300 mm) | 12 ⅞" (327 mm) |
| 15" (375 mm) | 15 13⁄16" (402 mm) |
| 18" (450 mm) | 19 3⁄16" (503 mm) |
| 21" (525 mm) | 22 9⁄16" (573 mm) |
| 24" (600 mm) | 25 5⁄16" (643 mm) |
| 27" (675 mm) | 28 ½" (724 mm) |
| 30" (750 mm) | 32 17⁄32" (826 mm) |
Choosing Your Hole Saw
Inserta Tee hole saws are offered as color-coded series, each covering a range of fitting sizes. To order the right one:
- Find your Inserta Tee fitting size (e.g. 4", 6", 8").
- Use the sizing chart above to confirm the required saw diameter.
- Select the matching series from the options above — Blue, Red, Black, Yellow, Silver, Gold, or Gray.
Not sure which series covers your size? Request a quote with your Inserta Tee size and we'll confirm the correct hole saw.
Need the Fittings Too?
Hole saws pair with the Inserta Tee fittings themselves — the three-piece PVC hub, rubber sleeve, and stainless steel band that create the watertight lateral connection. Shop the full fitting line and OneFit adapters here:
Inserta Tee Hole Saws in Action
Inserta Tee Hole Saw FAQ
Can I use a standard hole saw with an Inserta Tee?
No. A standard, generic hole saw will not produce the precise oversized bore an Inserta Tee needs to compress and seal. Only a matched Inserta Tee hole saw gives the fit required for pressure and air testing — and using a third-party bit voids the manufacturer's warranty.
What size hole saw do I need for my Inserta Tee?
It depends on your fitting size. For example, a 4" Inserta Tee needs a 4½" (114 mm) hole saw, and a 6" fitting needs a 6½" (165 mm) saw. See the full Inserta Tee hole saw sizing chart above for every size from 2" through 30".
Why is the hole saw bigger than the Inserta Tee?
The bore is intentionally larger than the fitting so the rubber sleeve compresses against the cored wall to form the watertight seal. That compression is what makes the connection air-testable, so the oversized dimension is critical.
Are the hole saws reusable?
Yes. Inserta Tee hole saws are built for repeated coring across many connections, boring clean holes in PVC, HDPE, concrete, and corrugated pipe. Keep the correct size on hand for each fitting size you install.
Where can I buy Inserta Tee hole saws?
Mainline Materials stocks the full Inserta Tee hole saw series alongside the fittings and OneFit adapters, with free shipping on every order. Choose your series above or request a quote.