OMA HSA 8 Segment Finger Bit (20mm x 40mm)

OMA HSA 8 Segment Finger Bit (20mm x 40mm) is a high-performance, Italian-made finger bit engineered for cutting granite, quartz, quartzite, marble, and engineered stone on CNC machines. Designed with 8 double segments, this modified configuration delivers aggressive cutting, even wear, and outstanding tool life.

Optimized to run between 5,500–8,000 RPM at 14–25 inches per minute (depending on material), this bit provides smooth cutting with minimal apple coring and excellent consistency across mixed stone production.

Fabricators report exceptional longevity, averaging 100–130 sink cutouts in mixed materials, with typical tool life ranging from 550–750 linear feet — and in many cases exceeding 1,000 linear feet depending on feed rate, RPM, and material.

Recommended Specifications

• Quartzite: 12–16 IPM | 7,000–8,500 RPM
• Quartz: 15–24 IPM | 7,000–8,500 RPM
• Granite: 15–24 IPM | 7,000–8,500 RPM

Performance Highlights

• 8 double-segment design for aggressive cutting
• Excellent life span and consistent wear
• Minimal apple coring
• Handles mixed stone production efficiently
• Made in Italy for premium quality

Key Benefits

• Professional-grade CNC performance
• Optimized for high-volume fabrication shops
• Reliable durability across granite, quartz, and quartzite