Weha Blitz High Speed Dry Diamond Core Bits are premium grade for super fast cutting.

With diamonds both inside and outside the barrel to reduce drag, heat, and friction, along with high diamond content segments, the Weha dry diamond core bits will drill holes in 3cm granite in less than 30 seconds.

The Weha High Speed Diamond Core Bits are built to be the best dry diamond core bit for granite and engineered stone counter top faucet hole drilling.
But they can also be used wet with Air Polishers in shop applications.

What makes the Weha High Speed Diamond Core Bit different from others and the best Diamond Core Bit on the Market?

Speed of drilling: The Weha Blitz Diamond Core Bits will drill a hole through 3cm Uba Tuba Granite in less than 30 seconds at 10,000 rpm.

Interior and Exterior Diamonds on the Barrel: A lot of Diamond Core Bits have diamonds on the outside of the barrel. But the Weha Blitz High Speed Diamond Core Bits have double Vacuum Brazed diamonds on both the outside AND the inside of the barrel. The vacuum brazed diamonds on the inside and outside promote faster drilling when the bit is being "rounded" during the drilling process. The vacuum brazed diamonds on the outside also allow you to enlarge the hole. So if you need to make the hole a little bigger, just run the Weha Diamond Core Bit like a Vacuum Brazed Zero Tolerance wheel and make the hole bigger. This also works excellent when you are doing inside and outside radius holes or making grommets fits nice and smooth. The diamonds on the inside barrel also enhance speed drilling and helps promotes the stone core to drop out much easier.

Use it Dry: These granite and stone core bits can be used dry for job site counter top applications. Which include: faucets, sink corners, creating radius holes, grommets, and other on site fabrication work. Just screw them onto a makita, metabo, hitachi, or any other grinder, turn up the rpms and get it drilled fast!

Use it Wet: For in shop use, were granite counter top fabrication is primarily done wet, attache the Weha Blitz Diamond Core Bit to any air polisher, or electric wet polisher and run at least 4,000 rpm. It will drill just as fast, if not faster, than wet core bits.

Weha White Lion 1 3/8" Dry Diamond Core Bit for Quartzite, ranite, Engineered Stone, Quartz

Weha White Lion 1 3/8" Dry Diamond Core Bit is an outstanding core bit for granite, engineered stone, quartz, and concrete counter top materials.

With a high diamond concentration of diamonds, the Weha White Lion Core Bit will equal the same cost per hole as the most expensive core bits on the market.

Featuring vacuum brazed diamonds on the inside and outside of the core, the 1 3/8" White Lion Dry Core Bit will not only drill fast but will leave the hole very smooth and clean for the faucets to easily slide in to.



Weha Xubi Dry Diamond Core Bit is an outstanding high speed core bit for granite, engineered stone, quartz, and concrete counter top materials.

With a high diamond concentration of diamonds, the Weha Xubi Granite Core Bits will reach 70+ holes.

Additionally the side diamonds allow the hole to be easily expanded very fast with the vacuum brazed diamonds.

At 4" in total length, the Xubi Granite Core Bits will be perfectly stable for "biting" into the stone and for drilling free hand with the makita grinder. This 4" length plenty of depth to drill through 2cm, 3cm granite and stone without any problems.

The Weha Xubi Diamond Granite Core Bits are specifically designed for drilling free hand. The Xubi Diamond Core Bit has very sharp diamond lines to start the drilling on the stone at an angle without skipping across the stone. The strong solid welding is also made for the circular motion when drilling in the hole to speed up the coring and drilling process.

Weha really thought through the real world drilling process and produced one of the best granite core bits for granite and engineered stones at one of the best prices one could ask for.