Product Description: Advantages: 1.Every product has a unique Manufacturing Part Number label on the inner package that proves it has been qualified,which include Part Number,Model Number and inspection date information 2.If you have any questions about the item,please provide us the Manufacturing Part Number for checking,your profits will be guaranteed.3.Total Length:4cm, Shank Diameter:0.6cm,Tip Width:1cm. Taper Angle:60 Degrees4.Used on CNC engraving machine, working at high rotating speed.5.Coarse grit diamond,best on marble,sandstone and other soft stone relief.6.Attentions:The error 1-2mm is within the normal range and does not affect the product use. Safety instructions:1. Razor blades permanently enclosed in a cartridge or housing with less than 2mm of blade exposed��2. The bladed product is not used for people under 18 years.3. The item is only for industrial engraving, not hazardous articleSpecifications:Material:DiamondColor:GoldSize:4.0x0.6cm/1.57x0.24inch(LxShank Dia)Taper Angle:60 DegreesWeight:12 g Package include:1 x Engraving Bits