Application: Suitable for cutting all kinds of jade, optical glass, agate. Features: hot pressing process; matrix and head strong connections; cutting speed, unique technology and processes. This product is our mature products sold in China. Outer diameter Hole diameter Segment dimension inch metric Bore size Thickness Height 40mm 6 1.1 10mm 50mm 6 1.1 10mm 60mm 6 1.1 10mm 80mm 6 1.1 10mm 4 "100mm 8 1.1 / 1.3 10mm 5" 120mm 12 1.1 / 1.3 10mm 6 "150mm 12 1.1 / 1.3 10mm 7 "180mm 25.4 1.6 8mm 8" 202mm 25.4 1.6 8mm 8 "206mm 25.4 1.6 10mm 10" 254mm 25.4 1.6 8 / 10mm 12 "304mm 25.4 1.8 / 2.0 10mm 14" 350mm 25.4 2.0 10mm