General description SwissTech 4.00MM HSS-Co 8% 3 Flute Weldon Shank Slot Drills are designed for precision cutting and machining. These drills feature a TiCN coating that enhances cutter life and improves the surface finish of the work material. They are part of the Regular Series and comply with DIN standards for reliable performance. Technical specifications Cutter Diameter: 4.0mm Cutter Diameter Tolerance: e8 Cutting Direction: Right Hand End Mill Type: Slot Drill Finish/Coating: TiCN Flute Length: 11.0mm Flute Type: Helical Length Type: Regular Material: Cobalt High Speed Steel Material Grade: M42 Number of Flutes: 3 Overall Length: 55.0mm Plunge Type: Centre Cutting Series: 6 Shank Diameter: 6.0mm Shank Diameter Tolerance: h6 Shank Type: Weldon Flat Standards Met: DIN 844, DIN 1835B Other information