Dormer Taper Shank Drill Bit, Jobber Length, Series: A730, Metric/Imperial, 19 mm Drill - Metric, 0.748 in Drill - Decimal Inch, 233 mm Overall Length, 4XD Cutting Depth, Spiral Flute, 135 mm Flute Length, #2 Morse Taper Shank Taper Designation, 118 deg Point, Thinned Web Point, Right Hand Cutting Direction, HSS-E Cutting Edge, No Through Coolant, HSS-E, Oxide Treated, Applicable Materials: Steel, Stainless Steel, Cast Iron, Titanium, Nickel, Copper, Aluminum Magnesium, Synthetic Materials, Hard Materials and Graphite