VN4022
Point shape - form E.
Material HSS Co5.
Very high performance high speed steel with good toughness for milling cutters and for milling of materials up to the strength of 1200 MPa.
Lead of helix 25° - 30°.
VN40090
Point shape - form C.
Conical lip relief, split point.
Lead of helix 25° - 30°.
Point angle 118°.
Material HSS.
High speed steel of average performance, it is applicable especially for cutters of smaller diameters and for milling of materials up to the strength of 900 MPa.