... steel materials 3. Whole sale and retail Blade for CNC engraving machine 1.The CNC engraving Blade is made of tungsten steel ,which is ... durable suitable to long time use. 2.It's fit for various cutting media such as Acrylic , wood, bamboo, glass, mable etc ... 24 hours, someone interested in them ,please contact me. Blade for CNC cutting and engraving machine