Drill Bit Grouping: Drill Bit;Shank Size: 1/4"-28;Overall Length: 1 1/2 In;Decimal Equivalent: 0.1850;Finish: Black Oxide;Drill Bit Dimension Type: Wire;Drill Bit Point Angle: 135Degrees;Flute Length: 9/16 In;Drill Bit Material: Cobalt Steel;Wire Size: #13;Cutting Direction: Right Hand;Drill Bit Size: #13;Point Angle: 135 Degrees;Application: For Aviation;Item: Threaded Shank Drill Bit;Drill Bit Finish: Black Oxide;Material: Cobalt M35;Standards: Not Rated;Flute Type: Spiral;Material Grade - Machining: M35;Drill Bit Point Type: Split Point;Shank Type - Machining: Threaded;Finish - Machining: Black Oxide;Shank Thread Size: 1/4"-28;Material - Machining: Cobalt;Measurement System: Wire;Aircraft Drill: No;Country Of Origin (Subject To Change): China;