Precision Twist Drill Taper Length Drill, Type N General Purpose, Series: 5ATL, 0.4724 in Drill - Decimal Inch, 205 mm Overall Length, 6XD Cutting Depth, 2 Flutes, Spiral Flute, 134 mm Flute Length, 0.4724 in Shank, Straight Shank, 118 deg Point, Conventional Point, Right Hand Cutting Direction, HSS Cutting Edge, HSS, Bright, Applicable Materials: Magnetic Soft Steel, Structural Steel, Carburizing Steel, Plain Carbon Steel, Nodular Graphite, Malleable Cast Iron, Reinforced Plastic Materials and Copper