The Crowne 25mm Diamond Finger Milling Bit is made for enlarging, shaping and correcting existing holes and cuts in porcelain, ceramic, stone and other hard materials.
Whether you need to open up a hole that missed the mark, shape around plumbing, create a notch or clean up a difficult cut, the 25mm Finger Bit lets you remove material exactly where you need it.
This isn't a drill bit. It's the tool you grab after the hole is already there.
Enlarge Existing Holes — Open up undersized or slightly off-center holes without starting over.
Shape Around Plumbing — Create custom openings and semicircles around pipes, valves and other penetrations.
Clean Up Cuts — Smooth and refine rough holes, notches and inside corners.
Controlled Material Removal — The 25mm profile removes material quickly while still giving you control.
Vacuum-Brazed Diamond — Built for aggressive grinding and shaping of hard tile and stone.
5/8"-11 Thread — Threads directly onto compatible angle grinders.
Enlarging drilled holes
Correcting off-center holes
Plumbing penetrations
Faucet and valve openings
Semicircle cuts
Notching tile
Cleaning up L-cuts
Rounding and shaping openings
Detailed tile and stone fabrication
Designed for use on:
Porcelain
Ceramic tile
Granite
Marble
Quartz
Engineered stone
Diameter: 25mm / 1"
Thread: 5/8"-11
Diamond: Vacuum-brazed
Application: Milling, shaping and enlarging
Tool: Compatible angle grinder
Use: Existing holes, openings and cuts
This is a milling and shaping bit — not a drilling bit.
Start your opening with the appropriate diamond drill bit or blade, then use the Finger Bit to enlarge, shape and fine-tune the cut.
Make the hole. Then make it fit.
Crowne Tools — For Pros. By Pros.
