Precision Twist Drill Taper Length Drill, Heavy Duty Long Length, Series: M51CO, 1 in Drill Size - Fraction, 0.0394 in Drill Size - Decimal Inch, 11 in Overall Length, 6XD Cutting Depth, 2 Flutes, Spiral Flute, 6-3/8 in Flute Length, 1 in Shank, Straight Shank, 135 deg Point, Split Point, Right Hand Cutting, HSS-E Cutting Edge, HSS-E, Bronze, Applicable Materials: Magnetic Soft Steel, Structural Steel/Case Carburizing Steel, Plain Carbon Steel, Alloy Steel/Hardened Steel, Tempered Steel, Free Machining Stainless Steel, Austenitic, Ferritic + Austenitic, Martensitic, Lamellar Graphite and Unalloyed Titanium