Z-LION 2" 1 PC Diamond Polishing Drum Wheels M14 5/8-11 Thread Electroplated Grinding Tool For Granite Marble Concrete Sanding Z-LION 2" 1 PC Diamond Polishing Drum Wheels M14 5/8-11 Thread Electroplated Grinding Tool For Granite Marble Concrete Sanding. Sale price : $20.99 Category : Tools