2" Economy polishing sink wheels feature a new design and a new resin bond compound, which paired with a complete range of carefully selected grits guarantee a superb polish. Designed for all types of natural and engineered stones, these wheels are a great solution to sink and edge polishing. They are available in several sizes and grits, and in with either 5/8-11 or M14 thread.Choose from the Following grits-50, 100, 200, 400, 800, 1500, 3000, BUFF Grit Choices.Available in 5/8-11" OR 14mmChoose either 5/8-11 for grinder or 14mm for Router