Precision Twist Drill Jobber Length Drill Bit, General Purpose, Series: R18P, Imperial, #8 Drill - Wire, 0.199 in Drill - Decimal Inch, 3-5/8 in Overall Length, 4XD Cutting Depth, 2 Flutes, Spiral Flute, 2-7/16 in Flute Length, 0.199 in Shank, Straight Shank, 118 deg Point, Conventional Point, Right Hand Cutting Direction, HSS Cutting Edge, No Through Coolant, HSS, Bright, Applicable Materials: Magnetic Soft Steel, Structural Steel/Case Carburizing Steel, Plain Carbon Steel, Alloy Steel/Hardened and Tempered Steel, Free Machining Stainless Steel, Ferritic + Austenitic, Graphite/Malleable Cast Iron, Nickel, Copper, Brass and Bronze