PEARL ABRASIVE P4 CONCRETE and NATURAL STONE BUTTON P CUP WHEEL 7 BUTTONSFor removing surface coatings including epoxies, mastic and glue.Available 4" - 5" - 6" and 7"Pearl''s P4 Button cup wheel features a unique diamond cluster technology that is perfectly suited for coatings removal and surface preparation. The P4 Button removes surface coatings without loading up and delivers a much smoother finish than carbide chip or PCD alternatives.Specification4 x 5/8-11, 3 Buttons, Max RPM: 13,700 - Wet, Dry5 x 5/8-11, 5 Buttons, Max RPM: 12,200 - Wet, Dry6 x 5/8-11, 6 Buttons, Max RPM: 10,200 - Wet, Dry7 x 5/8-11, 7 Buttons, Max RPM: 8,500 - Wet, DryDiamond-Bond - SinteredEngineered for grinding concrete, masonry and stone.Arbor Bore - 5/8"-11Wet or dry grinding.