Description:5pcs 3.175mm Shank 0.1mm 15\/20\/30\/45\/60 Degree Tungsten Steel Engraving Bits CNC ToolSpecification:          Material       Tungsten Steel           Shank diameter       3.175mm           Degree       15 \/20 \/30 \/45 \/60            Size        0.1mm           Length       36mm           Quantity       5pcs   Features:   Suitable for engraving hardwood、 density board、 acrylic、 PVC、 metal、 marble、 jade、 etc.   High precision and concentricity.    Durable and long service life.  Package Included:5 x Engraving BitsMore Details: