Screw Machine Drill, Type Slow Spiral, List Number 759, Material Carbide, Finish Uncoated, Point Type 4-Facet, Drill Point (Deg.) 118, Wire Size 21, Decimal Equivalent 0.1590, Flute Length (In.) 1-1/16, Overall Length (In.) 2-1/8, Shank Dia. (In.) 0.159, Application Cast Iron, Stainless Steel, High-Temp Alloys And Hardened MaterialFeatures - Point Type - 4-Facet Drill Point (Deg.) - 118 Wire Size - 21 Decimal Equivalent - 0.1590 Flute Length (In.) - 1-1/16 Overall Length (In.) - 2-1/8 Shank Dia. (In.) - 0.159 Application - Cast Iron, Stainless Steel, High-Temp Alloys And Hardened MaterialWARNING: California Residents This product can expose you to chemicals including Styrene, which is known to the State of California to cause cancer and birth defects or other reproductive harm.California proposition 65 warning