General description SwissTech 4.00MM HSS-Co 8% 2 Flute Weldon Shank Slot Drills are designed for precision machining with a TiCN coating that enhances cutter life and improves surface finish. These drills are centre cutting and feature a Weldon shank, making them suitable for a variety of applications in metalworking. 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: 2 Overall Length: 55.0mm Plunge Type: Centre Cutting Series: 2 Shank Diameter: 6.0mm Shank Diameter Tolerance: h6 Shank Type: Weldon Flat Standards Met: DIN 1835B, DIN 844 Other information