Professional Diamond DEMI / RADIUS Bullnose Router Bit & Stone Polishing Kit for Granite, Marble, Quartz & Concrete Countertop Fabrication Designed for professional stone fabricators, countertop installers, contractors and DIY stone workers. This listing offers multiple options of B-Series diamond router bits and diamond polishing pad kits for creating smooth full bullnose edges and achieving a high-quality polished finish on natural and engineered stone.

AVAILABLE OPTIONS: B-Series Diamond Router Bits: 

 B5: For approximately 5mm (3/4") thick stone 

 B10: For approximately 10mm (3/8") thick stone 

 B13: For approximately 13mm (1/2") thick stone 

 B20: For approximately 20mm (3/4") thick stone 

 B25: For approximately 25mm (1") thick stone 

 B40: For approximately 40mm (1-1/2") thick stone 

DIAMOND ROUTER BIT FEATURES: 

 ✔ Creates professional DEMI / RADIUS bullnose edge profiles 

 ✔ Designed for granite, marble, quartz, concrete and engineered stone 

 ✔ Diamond cutting segments provide smooth and consistent shaping 

 ✔ 5/8"-11 female thread arbor fits most variable speed wet polishers 

 ✔ Ideal for countertop edge fabrication and restoration

DIAMOND POLISHING PAD KIT FEATURES: 

 ✔ Available in 4" and 5" sizes 

 ✔ Complete grit sequence: 30 / 50 / 100 / 200 / 400 / 800 / 1500 / 3000 

 ✔ Produces smooth polishing progression from grinding to final gloss 

 ✔ Diamond pads help achieve professional granite and marble finishes 

 ✔ Wet polishing recommended for best performance 

APPLICATIONS: 

 • Granite countertop fabrication

 • Quartz edge polishing 

 • Marble restoration • Bathroom vanity fabrication 

 • Kitchen countertop installation 

 • Concrete countertop finishing 

 • Stone edge profiling

 IMPORTANT: Please select the correct option according to your stone thickness and tool requirements. Router bit requires a compatible 5/8"-11 wet polisher or variable speed grinder. Always use appropriate safety equipment during operation.

OPTION 1:

1 PIECE OF B5 DIAMOND ROUTER BIT (FOR 5MM / 3/16") THICK OR HIGH STONE CONCRETE QUARTZ GRANITE MARBLE EDGE TO DO DEMI / RADIUS SHAPE BULLNOSE (5/8"-11 FEMALE THREAD ARBOR).

OPTION 2:

1 PIECE OF B10 DIAMOND ROUTER BIT (FOR 10MM / 3/8") THICK OR HIGH STONE CONCRETE QUARTZ GRANITE MARBLE EDGE TO DO DEMI / RADIUS SHAPE BULLNOSE (5/8"-11 FEMALE THREAD ARBOR).

OPTION 3:

1 PIECE OF B13 DIAMOND ROUTER BIT (FOR 13MM / 1/2") THICK OR HIGH STONE CONCRETE QUARTZ GRANITE MARBLE EDGE TO DO DEMI / RADIUS SHAPE BULLNOSE (5/8"-11 FEMALE THREAD ARBOR).

OPTION 4:

1 PIECE OF B20 DIAMOND ROUTER BIT (FOR 20MM / 3/4") THICK OR HIGH STONE CONCRETE QUARTZ GRANITE MARBLE EDGE TO DO DEMI / RADIUS SHAPE BULLNOSE (5/8"-11 FEMALE THREAD ARBOR).

OPTION 5:

1 PIECE OF B25 DIAMOND ROUTER BIT (FOR 25MM / 1") THICK OR HIGH STONE CONCRETE QUARTZ GRANITE MARBLE EDGE TO DO DEMI / RADIUS SHAPE BULLNOSE (5/8"-11 FEMALE THREAD ARBOR).

OPTION 6:

1 PIECE OF B40 DIAMOND ROUTER BIT (FOR 40MM / 1-1/2") THICK OR HIGH STONE CONCRETE QUARTZ GRANITE MARBLE EDGE TO DO DEMI / RADIUS SHAPE BULLNOSE (5/8"-11 FEMALE THREAD ARBOR).

OPTION 7:

1 PIECE OF 4" PVC BACKING PLATE (5/8"-11 FEMALE THREAD ARBOR. MAX VELOCITY IS 5000 RPM. PLEASE DO NOT USE IT WITH HIGH SPEED GRINDER / POLISHER). AND 1 PIECE OF 4" DIAMOND GLAZE BUFF (IT BRINGS MIRROR LIKE POLISHED RESULT TO NATURAL GRANITE MARBLE). AND 8 PIECES OF 4" DIAMOND WET DRY POLISHING PAD (WET USE RECOMMENDED): 1 X GRIT 30 50 100 200 400 800 1500 3000.

OPTION 8:

1 PIECE OF 5" PVC BACKING PLATE (5/8"-11 FEMALE THREAD ARBOR. MAX VELOCITY IS 5000 RPM. PLEASE DO NOT USE IT WITH HIGH SPEED GRINDER / POLISHER). AND 1 PIECE OF 5" DIAMOND GLAZE BUFF (IT BRINGS MIRROR LIKE POLISHED RESULT TO NATURAL GRANITE MARBLE). AND 8 PIECES OF 5" DIAMOND WET DRY POLISHING PAD (WET USE RECOMMENDED): 1 X GRIT 30 50 100 200 400 800 1500 3000.

OPTION 9:

B5 ROUTER BIT + 4" PAD SET

OPTION 10:

B10 ROUTER BIT + 4" PAD SET

OPTION 11:

B13 ROUTER BIT + 4" PAD SET

OPTION 12:

B20 ROUTER BIT + 4" PAD SET

OPTION 13:

B25 ROUTER BIT + 4" PAD SET

OPTION 14:

B40 ROUTER BIT + 4" PAD SET

OPTION 15:

B5 ROUTER BIT + 5" PAD SET

OPTION 16:

B10 ROUTER BIT + 5" PAD SET

OPTION 17:

B13 ROUTER BIT + 5" PAD SET

OPTION 18:

B20 ROUTER BIT + 5" PAD SET

OPTION 19:

B25 ROUTER BIT + 5" PAD SET

OPTION 20:

B40 ROUTER BIT + 5" PAD SET