2 Flute Straight Step Drill4-20mm Drills & deburrs in one processIdeal for: Non-ferrous metals, sheet steel, plastic & stainless steel up to 3mm thickSuits: Non-hammer action portable power drills Self-starting split point removes the need for a pilot hole 2 flute design for smooth cutting TiN coating reduces heat & increases lubricity for extended life Laser etched hole Premium HSS M2 raw material for extended life 3 flats on shank, prevents slippage in chuck hangable 1 piece plastic card Technical information: Number of steps: 9 steps Step sizes: 4, 6, 8, 10, 12, 14, 16, 18 & 20mm 8.0mm shank Also available in bulk 1 piece convenient plastic pack Code: 9STM4-20