... 1/8'' shaft Description diamond bit set 8 Cylinder Bits: 048, 056, 062, 075, 077, 122 ... : 085 103, 151 Ball Diameter 1 Disc BIt: 131 Diameter 1 Tapered Sphere Bit; 133 Diameter 3 Tapered Point Bits: 082 ... , 086, 179 Diameter 1 Tapered Flat Bit: 122 DiameterAbout Us Our company has own manufacturer in mainland ... high quality products, competitive price and prompt delivery. diamond bit set