Apexx Reverse-Thread Blue CNC Finger Bits with Bottom Segment

Designed for Left-Hand-Thread 5-Axis machines such as Sasso K600 and Pack Saber; Soft bond makes it a great option for all natural stones and engineered stones, even as hard as Taj Mahal (natural quartzite); The bottom segment enables the drill-down when there is a need; Fit all Left-Hand-Thread CNC machines; Material: Natural Quartzite, Granite, Engineered Stone; Wet use only; Color: Blue Thread: 1/2" Gas Item # Diamond Diameter Diamond Height Materials Suggested RPM Feed Rate 22601-01058 20mm (w/ bottom segment) 40mm Natural Quartzite; Granite; Engineered Stone 4,500 -5,000 10-16 ipm