Description
The PTH CNC diamond finger bit for quartzite and hard materials is a twin 8-segment tool for controlled material removal during stone countertop fabrication. With a 20mm diameter, 40mm working height, and 1/2 Gas thread, it combines the configuration of PTH SKU 50028 with a material-specific application and operating range for quartzite and hard materials.
CNC quartzite cutting and countertop fabrication
Use this finger bit for CNC material removal and sink cutout work in quartzite and hard materials. Choose this version when your fabrication work calls for quartzite-specific cutting rather than the granite, marble, and quartz application of SKU 50028.
Planning a Taj Mahal or other quartzite countertop project?
For projects featuring quartzites such as Taj Mahal, Cristallo, Calacatta Macaubas, White Macaubas, or Sea Pearl, select tooling and cutting settings for the actual slab, not the trade name alone. These names identify project materials, not individual performance tests of this bit. Confirm suitability for your slab and machine setup before machining.
Specifications and operating parameters
- Bit diameter: 20mm.
- Working height: 40mm.
- Configuration: twin 8-segment.
- Connection: 1/2 Gas thread.
- Recommended spindle speed: 4,500–4,700 RPM.
- Feed rate: 6–8 inches per minute.
- Application: quartzite and hard materials.
- Machine application: compatible CNC stone fabrication machines.
Use the settings for this quartzite bit
Operate within the 4,500–4,700 RPM range and use a feed rate of 6–8 inches per minute. Adjust within these ranges for the specific material, machine setup, and cutting engagement. Tool life varies with operating conditions.
Confirm the 1/2 Gas connection, bit dimensions, and machine requirements before ordering. This is a CNC finger bit, not an M12 radial arm finger tip.
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 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.
- SKU 50045: 1 3/8-inch core bit — Hole drilling in quartzite, hard granite and quartz. Machines: Compatible CNC machines.
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.