Detailed Product Description 1.NC Typeunit:mmOuter DiameterBore,Attachment ThicknessShapeGrit55-12010,M14, G1/2", 5/8-11"10-40as above picturePOS.1#2#3#4#5#6#7#2.CNC Typeunit:mmOuter DiameterBore,Attachment ThicknessShapeGrit85-12022.23/30/35,Milling Pins20-50as above picturePOS.1#2#3#4#5#6#7#Features:high strength diamond, high working efficiency,the sharpness is nice etc.Applications:Marble, ...