APEXX Micro Incremental Cutting Bits

8mm-diameter diamond tips for super fast cutting Feed Rate for ES and Natural Stone is 24" to 40"/min Feed Rate for Porcelain is 12" to 20"/min Designed for sink cutouts and engraving into stones Good for all stones with fast speed; long life Available threads: Straight Shank; Regular M12; Reverse M12 Wet use only ITEM # COLOR DIAMETER DIAMOND HEIGHT THREAD MATERIALS RPM REMOVAL PER PASS 22401-10001 White 8mm 20mm Straight Shank Quartz (ES); Granite; Quartzite 8,000 - 10,000 1/32” (0.8mm) 22401-10002 White 8mm 20mm M12 Quartz (ES); Granite; Quartzite 8,000 - 10,000 1/32” (0.8mm) 22401-10003 White 8mm 20mm Reverse M12 Quartz (ES); Granite; Quartzite 8,000 - 10,000 1/32” (0.8mm)