1.Dia:50-400mm available 2.Grit:upon request 3.Thickness:10-32mm available 4.Hole size:20mm, 32mm available Features:1. Diameter: 50mm-400mm available2. Diamond grit: #100, #150, #200, #300, #400, or upon your request3. Thickness:10mm-32mm, other size is avaiable4. Hole size:20mm,25.4mm,30, or as your request5. Type: straight wheel, bowl-shaped wheel, cup-shaped wheel,dish-shaped wheel, wheel ...