Chicago-Latrobe 159 11/64 HSS Heavy-Duty Steam Oxide 135 Split Point Screw Machine Drill - Pkg Qty 12

Large size general-purpose drills with three-flatted 1/2" reduced shank. Manufactured from high-speed steel substrate. 118° split point for easier, more precise penetration. Standard 6" overall length and 3-1/8" flute length for increased rigidity, less deflection and better hole accuracy. Standardized lengths result in minimal adjustment during tool changes in screw machines and machining centers. Three flats on shank for a more positive grip in the drill chuck; flats reduce drill slippage under high loads. Ideal for portable drilling due to increased rigidity. Black and gold ...

General purpose geometry for drilling in a wide range of operating conditions and materials. 118° radial point. Manufactured from premium high-speed steel. Shorter flutes and overall length provide superior rigidity to minimize deflection when using heavy feed rates. Extra rigidity is ideal for portable drilling. TiN (Titanium Nitride) coating adds lubricity and hardness, which enhances chip flow, finish hole quality and drill life. For drilling in alloy steel, carbon steel and cast iron. Made In USA. Pack Of 6. 30 Day Warranty.

Heavy duty geometry for drilling tougher materials by hand or machine. Shorter flutes and overall length provide superior rigidity to minimize deflection when using heavy feed rates. Manufactured from premium cobalt high-speed steel. 135° split point is self-centering for reduced thrust and easier penetration, sizes under .0625 do not have split. Straw oxide finish for increased lubricity with reduced galling and welding and easy identification of cobalt. For drilling in alloy and carbon steel, stainless, cast iron and tool steel. Made In USA. Pack Of 12. 30 Day Warranty.

Large size general-purpose drills with three-flatted 1/2" reduced shank. Manufactured from premium cobalt high-speed steel. 118° split point for easier, more precise penetration. Standard 6" overall length and 3-1/8" flute length for increased rigidity, less deflection and better hole accuracy. Standardized lengths result in minimal adjustment during tool changes in screw machines and machining centers. Three flats on shank for a more positive grip in the drill chuck; flats reduce drill slippage under high loads. Ideal for portable drilling due to increased rigidity. TiN (Titanium ...

135° Split point is self-centering for reduced thrust and easier penetration. Manufactured from cobalt high-speed steel with heavy duty geometry. Left-hand helix is ideal for use in screw machines where machine spindle rotation is counter-clockwise. Superior rigidity in portable drilling. Straw oxide finish for less galling. Three flats on shank for sizes above 11/64" for tighter chucking and less slippage. For superior rigidity in maintenance applications in stainless steel, titanium, alloy and carbon steel, cast iron and hardened steel. Made In USA. Pack Of 6. 30 Day Warranty.