Weha Top Racer High Speed CNC Finger Bit (40mm x 20mm – 8 Segment)

The Weha Top Racer High Speed CNC Diamond Finger Bit is a high-quality production tool purpose-built for aggressive material removal in granite, marble, engineered stone, and quartz. Designed specifically for high-speed CNC fabrication, the Top Racer produces remarkable cutting performance and consistent wear.

Built with an 8-segment configuration, this 20mm x 40mm finger bit is capable of running fully engaged at feed rates up to 36 inches per minute. The faster you run the Top Racer, the better it performs — making it one of the fastest cutting CNC finger bits available for production environments.

Prefer running lower speeds for extended service life? The Top Racer also excels in controlled applications. Fabricators report consistent wear patterns and extended lifespan when operating at 5,800 RPM and 12–14 IPM, achieving approximately 700 linear feet while maintaining balanced diamond exposure.

Specifications

• Size: 20mm x 40mm
• Thread: 1/2 Gas
• Segments: 8
• RPM Range: 5,500–8,500
• Feed Rate: 24–36 IPM (high production capable)

Key Benefits

• Ultra-fast material removal for high production shops
• Consistent, even wear for longer usable life
• Excellent performance on granite, marble, quartz, and engineered stone
• Optimized for both high-speed and controlled cutting applications
• Commercial-grade CNC reliability

Why Buy from ProToolHaus?

ProToolHaus is a certified, expert-trained distributor of Weha products. Our team understands stone fabrication inside and out, so you get the right tool for the job — backed by real product knowledge and responsive support. Fast shipping, competitive pricing, and hands-on expertise set us apart.

Further Reading

Which Weha Finger Bit Do You Need? CNC vs Radial Arm — Complete Buying Guide → — Full comparison of all Weha finger bits and finger tips by machine type, material, and application.