4.0mm Diameter Jobber Length Carbide Twist Drill, 118? Split Point, AlTiN Coated, 35mm Flute, 64mm OAL 35mm Flute Length,4.0mm Shank,64mm OAL GWS/Monster jobber length twist drills are made from C-2 Sub-Micron Grain Carbide With 10% Cobalt Content. 25? helix angle quickly evacuates chips and allows for increased feed rates. 118? split point for quick penetration without walking. The most versatile overall length lends this geometry to a multitude of uses. Optional AlTiN coating can increase feed rates by 40%. Made in the USA. GWS/Monster Tool Part #450-401575B