1 3/8" CNC Core Bit for Quartzite, Hard Granite & Quartz

This 1 3/8" CNC core bit is designed for drilling quartzite, hard granite, and quartz during stone countertop fabrication. Choose this material-specific bit for compatible CNC equipment when your project calls for core drilling in these countertop materials.

CNC core drilling for quartzite, hard granite, and quartz

Match your drilling tool to the material being fabricated. This core bit is intended for quartzite, hard granite, and quartz, rather than the Dekton, Neolith, and porcelain application of SKU 50040.

Material and machine compatibility

• Suitable materials: quartzite, hard granite, and quartz.
• Application: core drilling for stone countertop fabrication.
• Machine application: compatible CNC equipment.

Operating parameters

• Spindle speed: 1,520 RPM.
• Feed rate: 20mm per minute.

Check your setup before drilling

Confirm the required hole diameter, tool connection, and machine compatibility before ordering. Follow the operating requirements for your equipment and the specific material being drilled.

Compare PTH finger bits, finger tips, and core bits

Choose by material, machining task, and machine connection. Finger bits and incremental finger tips are for cutting and material removal; core bits are for drilling holes.

• SKU 50028: CNC finger bit — Granite, marble, quartz and engineered stone. Machines: CNC machines; 1/2 Gas connection.
• SKU 50029: CNC finger bit — Quartzite and hard materials. Machines: CNC machines; 1/2 Gas connection.
• SKU 50030: CNC finger bit — Porcelain and ultra-compact surfaces, including Dekton and Neolith. Machines: Compatible CNC machines.
• SKU 50035: Incremental finger tip bit — Granite, marble and quartz. Machines: Radial arm and CNC machines; M12 connection.
• SKU 50036: Incremental finger tip bit — Dekton, Neolith and ultra-compact surfaces; also quartzite, granite and engineered stone. Machines: Radial arm and CNC machines; M12 connection.
• SKU 50037: Incremental finger tip bit — Quartzite, granite and quartz. Machines: Radial arm and CNC machines; M12 connection.
• SKU 50040: 1 3/8-inch core bit — Hole drilling in Dekton, Neolith and porcelain. Machines: CNC machines; 1/2 Gas connection.

Confirm the connection, dimensions, and operating parameters on each product page. CNC and radial arm tooling are not interchangeable unless your machine setup supports the specified connection.