... engraving bits Specification: Model Shk(mm)Ced(mm)degreeOvl(mm)Ball head66 6Flat head66 6V shape head66206Features Strong, durable, longer ... (1) We can operate CNC Router Machine . (2) We can use Artcam , NCstudio ,Wentai, JDPaint engraving softwares. (3) We can ... If you have any questions with CNC Router Machine , How to use our tools , How to use engraving softwares , please contact us .Have a nice ...