Chem-Set Sinkits Non-Coring CNC Drill Bit, 6.4 mm

Description

Sinkits CNC bit is a non-coring diamond drill bit for making 6.4 mm anchor holes in natural stone and engineered quartz during Sinkits undermount sink clip installation. The product data lists a 1/2 GAS connection, 1/4 inch drill size, and 1/2 inch target depth for countertop fabrication work.

Sinkits CNC bit Benefits

• 6.4 mm diameter matches the listed anchor-hole size for compatible Sinkits clip systems.
• Non-coring diamond construction supports clean drilling in natural stone and engineered quartz.
• 1/2 GAS connection fits CNC and fabrication equipment set up for this tooling format.
• Recommended cooling notes call for both spindle and halo cooling during use.
• Helps shops prepare repeatable anchor holes before sink clip insertion.

This bit is a small part of the installation process, but hole quality matters. A clean, correctly located hole helps the clip seat properly and reduces rework around finished countertop edges.

Where Sinkits CNC bit Fits

• Countertop shops drilling anchor holes for Sinkits undermount sink clips.
• Natural stone, engineered quartz, and similar hard-surface slabs.
• CNC workflows where hole placement is controlled before field installation.
• Production runs that need repeatable depth, diameter, feed, and cooling control.
• Install kits that include Sinkits Standard, XL, High Rise, or Super Short clips.

Surface Preparation and Use

Confirm clip layout before drilling and keep holes far enough from finished edges to avoid breakage. The listed recommendations call for 4500 to 5000 RPM, a feed rate around 1.25 to 1.5 inches per minute, both spindle and halo cooling, and a 1/2 inch depth.

Use proper CNC setup, water control, and operator training for the slab material. Inspect the bit for wear, runout, or damage before production drilling, and test the process on scrap when changing stone type or machine settings.

Technical Details and Documentation

Chemical Concepts product data identifies this as a 6.4 mm non-coring CNC drill bit for Sinkits anchor holes in natural stone and quartz. Sinkits describes its clip system as a drill-and-insert undermount sink mounting method for granite, quartz, concrete, and hard-surface countertops. For anchor and fastener context, review the Industrial Fasteners Institute.

Ordering Help

For related clips, anchors, and installation tools, browse Chemical Concepts fastener bits and accessories. For help matching clip style, bit setup, and countertop material, call (800) 220-1966 or email [email protected].