TTC Screw Machine Stub Length Twist Drill Sets-Drill Point Angle: 135° Split Point. 115pc 3-IN-1 Cobalt SCREW Machine Drill SET. 135° Split Point. Ground From The Solid. Straight Shank. Right Hand. With Metal Index. Primarily designed for machining operations in screw Machines. Short length offers increased rigidity for Machine Drilling a variety of materials and alloys. Best suited for Drilling steel, cast steel, cast iron, or other alloyed or non-alloyed ferrous materials, they also work well for a variety of non-ferrous and non-metallic materials. May be used with hand held manual Drills and either portable or stationary Machines. For optimal performance and the best tool life, suitable lubricating/cutting oils or the appropriate coolant fluids are recommended. TTC Screw Machine Stub Length Twist Drill Sets-Drill Point Angle: 135° Split Point Tool Material: Cobalt Drill Type: Overall Length: Point Sharpening Type: Size. 3 In 1 Combination.