Up to dia 1.9 with 4 facets- from dia 2 with relieved cone.
The robust cutter geometry ensures high-performance drilling with good process reliability.4 mm Dia, 140 Deg Point Angle, TiAlN Coated, Plain Shank Standard: DIN 6537 Tolerance nominal dia : h7 Number of cutting edges Z: 2 Tolerance nominal dia : h7 recommended maximum drilling depth L2: 29. Straight major cutting edges and a special flute profile ensure a good chip evacuation.4 mm Overall length L: 74 mm Shank dia Ds: 6 mm Feed f in steel A wide range of applications in steel materials thanks to a combination of tough ultra-fine grain carbide and an extremely wear-resistant coating.