Flexible grinding disc,radial flap disc Grit: P40-P400 Size: 100mm,115mm,125mm,150mm,178mm, Material: Aluminum oxide Flexible grinding disc,radial flap disc Diameter X Hole sizeGrit No. 364060801001201501802220 FLAP DISCS100MM/4.0"X16MM 115MM/4.5"X22MM 125MM/5.0"X22MM 150MM/6.0"X22MM 180MM/7.0"X22MM 230MM/9.0"X22MM Applications by different abrasive: 1)Aluminium oxide, (A.O.)Suitable for iron, ...