Demands greater operator skill since thesingle flute direction pulls the bur into thework piece.Type SACylindricalSingle Cut Carbide BursProvides the best surface finish and largestcontact patch on the work piece..
High Speed Steel1/2 Inch Reduced Shank DrillAll Drills are 6 Inches Overall LengthThese Drill Bits have a 3 Inch Flute (cutting) Length1/2" Round Shank118° Split Point.
135 Degree Point Cobalt Drill BitSplit PointIndustry Standard Type-J Cobalt Drill BitBronze / Straw ColorIndented shank indentifies drill bits as cobaltScrew Machine LengthALTiN Coated for Maximum Tool Life Standard Fractional Size Drill Bits.M42 Cobalt for better performance in harder to drill materials.