1/16 in. - 1/2 in. Titanium Aluminum Nitride High Speed Steel 135-Degree Split Point Twist Drill Bit Set (29-Piece)

Chicago Latrobe HSS heavy-duty jobber length drill bit set. Manufactured to NAS 907 Type B geometry aerospace specifications. Heavy-duty consruction for drilling in tougher materials. Manufactured from premium high-speed steel. 135° split point is self-centering for reduced thrust and easier penetration. Excellent choice for cutting stainless steel, tool steel, alloy steel, cast iron and Titanium. TiAlN surface treatment combines the ability to work in high temperatures with added hardness to increase drill life.NAS 907 type B geometry aerospace specificationTiAlN coating is a thin filmed coating that combines the ability to work in high temperatures with added hardness to increase drill lifeRound shanks allow use with a wide variety of toolholding systemsTiAlN coating provides longer wear life than uncoated or TiN toolsSet includes 1/16 in. - 1/2 in. drill bits