... , granite, ceramic, hard concrete, bricks etc.Diameter: 105-350mm.Specification:Outer Diameter(D)Inner Diameter (Hole)SegmentInchMetricInchMetric(T ... , 7/8"16, 20, 22.232.2x7.54.5"11520, 7/8"20, 22.232.4x7.55"12520 ... 4, 302.6x8.09"2307/8", 1", 1-1/5", 2"22.23, 25.4, 30, 503.1x8 ... .010"2507/8", 1", 1-1/5", 2"22.23, 25.4, 30, 503.2x8. ... 012"3007/8", 1", 1-1/5", 2"22.23, 25.4, 30, 503.2x8. ...