1.Dia: 12-200mm available 2.Grit:#46--#600, or upon request 3.Thickness:10-40mm available 4.Hole size:20mm, 32mm available Features:1. Diameter: 12mm-200mm available2. Diamond grit: #100, #150, #200, #300, #400, or upon your request3. Thickness:10mm-40mm, other size is avaiable4. Hole size:20mm,25.4mm,30, or as your request5. Types: straight wheel, bowl-shaped wheel, cup-shaped wheel,dish-shaped ...