Surface Grinding Segment Color Pink Abrasive Material Aluminum Oxide Compatible Chuck ME100703B Cortland Grit 30 Overall Length 8 in Overall Thickness 3 in Overall Width 11 1/4 in Primary Material Applicationn Aluminum Cast Iron Stainless Steel Steel Tool Steel Specification 86A30-E12VBEP Wheel Type Type 31 Series 86A Grade Extra Coarse