Overview: If you operate or maintain CNC machinery, make sure you have spare carbide milling cutters handy with this brand new box of 0.8mm replacements. Specification: Type: twin spiral flute carbide cutters Total length: 33mm (1.3") Flute length: 3.5mm (0.14") Flute diamater: 0.8mm (0.03") Shank diameter: 3.175mm