Floor polishing: 1.Working layer thickness: 8mm 2.Grits:50#, 100#, 200#, 300# ,400# ,800#, 1500#, 3000#,buff. Floor polishing1.Product information 1.Working layer thickness: 8mm2.Grits:50#, 100#, 200#, 300# ,400# ,800#, 1500#, 3000#, buff3.Shape: various