1 3/8" DRY CORE BIT QUARTZITE, QUARTZ, GRANITE

 1 3/8" Dry Diamond Core Bit for Quartzite, Granite,Engineered Stone, Quartz

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

With a high diamond concentration of diamonds, the 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" 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.

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

At 3 5/8" in total length, the  Core Bits will be perfectly stable for "biting" into the stone and for drilling free hand with the wet or dry grinders. This 3 5/8" length gives just enough depth to drill through 2cm, 3cm granite and stone without any problems.

The Diamond Granite Core Bits was specifically designed for drilling free hand. The  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.

1 3/8" (35mm) Diameter
5/8-11 thread
3 5/8" total length
Wet & Dry Use
Max RPM 6500
Recommended RPM: 3800-4800 RPM