... 3.Suit for marble,granite,concrete Hand tool polishing stone machine CS-001 Hand tool polishing stone machine Description:1) It is ... is 500-4500rpm. Features:1.integrated GFCI (operator,protector,circuit,breaker).2.360 degree adjustable 4" safety guard with integrated rubber ... into arbor.Application:At high speed,this is the ideal tool for fast stock removal using diamond grinding wheel,zero tolerance ...