Weha CNC Finger Bit - 20mm X 40mm 8 Segment
Size: 20mm x 40mm, 8 Segment design
Material Compatibility: Granite, quartz, quartzite, marble, engineered stone
Cutting Speed: Runs between 14–25" per minute (depending on stone)
RPM Range: 5,500–8,500 RPM (optimal performance around 7,000–8,000 RPM)
Life Expectancy: 100–130 sink cutouts, 550–750 linear feet typical, up to 1,000+ linear feet depending on stone and feed rate
Performance:
Smooth, fast cutting with minimal apple coring
Even wear pattern for extended life
Cost-effective (average as low as $0.76 per sink cutout)
Application Guidelines
Quartzite
Feed Rate: 12–16" per minute
RPM: 7,000–8,500
Quartz
Feed Rate: 15–24" per minute
RPM: 7,000–8,500
Granite
Feed Rate: 15–24" per minute
RPM: 7,000–8,500
The Weha CNC Finger Bit (20mm x 40mm, 8 Segment) and the OMA CNC Finger Bit Green (20mm x 40mm, 8 Segment) are professional-grade diamond tools designed for CNC stone routers. Engineered for granite, quartz, quartzite, marble, and engineered stone, both bits deliver fast cutting speeds, long life, and consistent performance.
The OMA C NC Finger Bit, made in Italy, features a modified 8-segment design that reduces apple coring and ensures even wear across all types of stone. With proper operating specs, fabricators consistently achieve 100–130 sink cutouts per bit, often exceeding 550–750 linear feet of cutting—with some reporting over 1,000 linear feet.
