1. D8*75L*M14 / 5/8“-11 Diamond Core Hole Drill Bit For Granite Slab and hard materials

2. D8*75L*M14 Diamond Core Hole Drill Bits For Granite Slab are usually used for building material, like marble, granite quartz and so on. The diamond drill bits can be used on CNC machine and protable drill machine,each center has a water hole drill is conducive to chip and cooling, and thus has a long service life. Some diamond drill bits are dry use, we have also specifically changed the production process for dry use diamond drill bits to ensure the quality

3. Features:

a. For handheld drill machine or CNC machine tools.

b. High efficiency,long lifespan,good stable.

All of our products have been strictly tested before access to market.
Other specifications can be customized according to requirements.

Specification of diamond drill bits:

Other specification can be customized according to need.

How to Use

Attach the Dry Core Bit onto your high-speed angle grinder or hand held core drill.

Mark the location of holes that need to be drilled.

Use a template as a guide on the stone in order to avoid any mistakes during drilling process.

Clamp a piece of stone scrap under the stone being core drilled to prevent excessive chipping or “blowout” on the back side of the stone.

Proceed with drilling, pressing steadily until the dry core bit drills through the stone.
When drilling multiple holes, cool off the dry core bit by dipping it in cool water after each drilled hole.

Frequently Asked Questions (FAQs)

Q: What materials can be core drilled using the Dry Core Bits?
A: The Dry Core Bits are designed to be used on granite, engineered stone and porcelain slab materials.

Q: Can I use the Dry Core Bits on marble?
A: No. Marble is too soft and the heat created from dry core drill may crack the material.

Q: Can I use the Dry Core Bit wet?

A: Yes. Although these core bits are designed for dry use, wet cutting is recommended whenever possible. When core drilling within residential homes, the dry application is highly recommended; this will save time and money for time consuming clean-ups of the residence.Yes. Although these core bits are designed for dry use, wet cutting is recommended whenever possible. When core drilling within residential homes, the dry application is highlyrecommended; this will save time and money for time consuming clean-ups of the residence.

Q: What is the main advantage of using dry core bits over wet core bits?

A: We realized that many customers wanted to use wet core drills without water on the job site. When an installer has to makes an additional hole or two, they can not use water since the stone is already installed and using water will be difficult and costly due to the time consuming clean-up.