1-3/8" Diamond Core Drill Bit for Granite & Marble Countertops, Faucet, Soap Dispenser & Air Gap Holes, 5/8"-11 Thread for Angle Grinders - CrownForce
1-3/8" Diamond Core Drill Bit for Granite & Marble Countertops, Faucet, Soap Dispenser & Air Gap Holes, 5/8"-11 Thread for Angle Grinders - CrownForce
Couldn't load pickup availability
Add a hole to an installed countertop without cracking the slab.
The CrownForce CF-SC-35 cuts the standard 1-3/8" (35mm) hole used for faucets, soap dispensers, sprayers, air gaps, and air switches in granite and marble. Fabricators typically charge $25–75 per hole on site. Drill it yourself instead.
Why this bit holds up▼
- Continuous diamond rim. An unbroken ring of diamond for a clean, chip-free edge on polished stone.
- 3" working depth. Deep enough for 2cm and 3cm countertops, thresholds, and pavers in one pass.
- Wet or dry. Run it wet for granite and long life. Run it dry with a shop-vac for quick holes.
- 5/8"-11 thread. Spins right onto your angle grinder. No adapter needed.
Specs▼
| SKU | CF-SC-35 |
| Diameter | 1-3/8" (35mm) |
| Working depth | 3" (75mm) |
| Thread | 5/8"-11 (standard US) |
| Rim | Continuous diamond rim |
| Use | Wet or dry |
| Materials | Granite, marble, hard stone, concrete, brick |
Common jobs for this bit▼
Adding a soap dispenser, sprayer, air gap, or air switch to a countertop that's already installed. Switching to a faucet that needs an extra hole. Water filter and instant-hot taps (some call for 1-1/2"; check your fixture).
Tip: Keep holes at least 2-1/2" from the countertop edge, run it wet on granite, and never use a hammer drill on stone.
Need a bigger hole?▼
See the CrownForce 2" stone core bit.
CrownForce Industries. Factory-direct diamond tools. We own our factory, so every tool is built right and priced fair.
