The 16" ZENESIS™ QUARTZITE blade provides superior cutting performance on quartzite. Unique split segment design for fast cutting speeds; has cut Taj Mahal at over 6 ft./min. feed rate. Patterned diamond matrix for straight chip-free cuts. Wet Use Only. Segment Size: 20mm. Arbor: 60/50mm. QUARTZITE PARAMETERS: 1450-1600 RPM; 4-10 ft. per minute.