1.OEM available 2. we can produce as your drawing 3.can be easily cooled Pencil edge diamond grinding wheel with internal cooling holes Special design for easily cooled.Regular specifications:Diameter: 100mm, 125mm, 150mm, 175mm,200mm Groove width: 3.5/4mm, 5mm, 6mm, 8mm, 10mm, 12mm, 15mm, 19mmGrit: From 50-320 meshBore: 13mm, 22mm, 50mm, 68mm, 70mmSpecial demensions can be available according to ...