... Thickness: 5mm-40mm Any special shapes and thickess, we also can do. Diamond Router BitsFeatures:1) Bullnose, With Plastic, Steel ... ) Diamond grit: #40 - #80, or upon request4) The height of working parts: 15mm, 20mm, 25mm, 30mm 40mm5)Suitable for ... With Special design of diamond brazing, the edge of grinding wheel will be free cutting,the efficiency of cutting will be improved greatlyPlease contact us ...