Venom Green Blind Non-Coring Anchor Bits are professional diamond drill bits designed for small anchor holes, mounting holes, and blind-hole drilling in quartz, quartzite, granite, marble, engineered stone and natural stone.
These bits are ideal for drilling anchor holes for brackets, fasteners, railings, hardware, shelving, bathroom accessories and countertop mounting points without the need for a full coring bit.
In this listing, simply select your size from the drop-down box.
Available Sizes (select from drop-down)
• 1/4 inch
• 5/16 inch
• 3/8 inch
• 1/2 inch
The non-coring (blind-hole) design is perfect for installers and fabricators who need clean, precise anchor holes for mounting hardware directly onto stone surfaces.
Built with precision diamond segments, these bits provide smooth drilling with minimal chipping, excellent control and reliable performance on hard materials such as quartz and quartzite. Wet or dry drilling can be used depending on the application, although wet drilling is recommended for cooler cutting and longer bit life.
Material Compatibility
Quartz
Quartzite
Granite
Marble
Engineered Stone
Natural Stone
Professional Features
• Blind-hole / non-coring design
• Excellent for anchor holes
• Precision diamond drilling
• Works on quartz & quartzite
• Minimal chipping
• Wet or dry drilling
• Clean entry and controlled drilling
• Choose size from drop-down
Applications
• Anchor holes
• Mounting points
• Railings
• Shelf brackets
• Bathroom accessories
• Kitchen hardware
• On-site drilling
• Countertop installation
• Fabrication & field mounting
Recommended Use
Wet drilling is recommended for quartz and quartzite to keep the bit cool and reduce dust; light-duty dry drilling may be used when required.
Tips From The Pros
• Use light pressure and let the diamond do the cutting
• Dip the bit in water between holes to extend life
• For harder stones like quartzite, use slow steady RPM
• Mark hole centers before drilling for best accuracy
Venom Green Blind Non-Coring Anchor Bits give fabricators and installers a precise solution for anchor holes and blind drilling on quartz, quartzite and natural stone—clean drilling, minimal chipping and reliable performance.
