General description SwissTech 20.00MM HSS-Co 8% 3 Flute Threaded Shank Slot Drills are designed for precision drilling with a TiCN coating that enhances cutter life and improves the surface finish of work materials. These drills are part of the Series 33 Regular Series and are manufactured to meet DIN 844 standards. Technical specifications Cutter Diameter: 20.0mm Cutter Diameter Tolerance: e8 Cutting Direction: Right Hand Finish/Coating: TiCN Flute Length: 38.0mm Flute Type: Helical Length Type: Regular Material: Cobalt High Speed Steel Material Grade: M42 Number of Flutes: 3 Overall Length: 104.0mm Plunge Type: Centre Cutting Series: 33 Shank Diameter: 20.0mm Shank Diameter Tolerance: h6 Shank Type: Threaded Standards Met: DIN 1835D, DIN 844 Other information