General description SwissTech 4.00MM HSS-Co 8% 3 Flute Weldon Shank Short Series Slot Drills are designed for precision machining. These drills feature a TiCN coating that extends cutter life and enhances the surface finish of the work material. They are suitable for various applications, including general production machining. Technical specifications Cutter Diameter: 4mm Cutter Diameter Tolerance: e8 Cutting Direction: Right Hand End Mill Type: Slot Drill Finish/Coating: TiCN Flute Length: 7mm Flute Type: Helical Length Type: Short Material: Cobalt High Speed Steel Material Grade: M42 Number of Flutes: 3 Overall Length: 51.0mm Plunge Type: Centre Cutting Series: 5 Shank Diameter: 6mm Shank Diameter Tolerance: h6 Shank Type: Weldon Flat Standards Met: DIN 327, DIN 1835B Other information