Saw Blades
Tile Porcelain Blade
Concrete Blade
Granite/Marble Blade
Carving Mini Blade(30mm-75mm)
Large Blade(350mm-400mm)
Diamond Core Bits
Diamond Drill Bit Kit
5/8-11" Thread
M14 Thread
Hex Shank
Diamond Grinding Wheels
Turbo Row Wheel
Vacuum Brazed Grinding Wheel
Profile wheel
PCD Grinding Wheel
Diamond Polishing Pads
Diamond Polishing Pads for Stone
Diamond Polishing Pads for Concrete
Diamond Hand Polishing Pads 
Other Tools & Accessories
DETAILS ITEM: Diamond Brazed Core Drills For Extension Holes
Quantity: 2pcs
Specificiation: Diameter: 9.7mm, Total length: 48mm, Workable length: 20mm
Diamond height: 4mm, Grit: #30/40, M14 Thread
Application: Dry/Wet drilling for Granite Marble Concrete Ceramics and other materials
The drill is used to load the extension hole of the rear bolt stone to make the interior of the rear bolt hole larger.
Feature:
1. High quality diamond particles provide fast and smooth drilling;
2. Vacuum brazing technology provides efficient working performance;
3. The design of chip removal groove makes it easier to discharge stone powder during drilling, improves the service life;
4. Less debris generated during use, reducing material loss;
MANUELS 
SHIPPING Standard Free Shipping:
US&CA 10-15 Days | MX 15-30 Days | AU&NZ 8-15 Days | Europe 5-15 Days
Expedited Shipping:
If you need DHL Express,
Contact us now:
Whatsapp: 189 5255 1577 Email: support@shadiatool.com or online chat.
FAQ Q：What material can this drill bit work on?
A: SHDIATOOL drill bits usually are able to work for various materials, please check our product description and product image to see details.
Q：What difference between red and gold and blue?
A: SHDIATOOL drill bits have different colors drill bits, but they are same quality.
Q: How can I know if this drill bit is suitable with my machine?
A: Please check your machine manual on the thickness and size of/where the arbor is, make sure these details is fine with this drill bit. Don’t worry if you have problem with the thread, SHDIATOOL has adapter solution for you too.
Q: How long can drill bit last?
A: Proper using and maintenance helps your SHDIATOOL drill bits work longer, make sure it under MAX RPM and nice temperature while working.