AERO-LHX Diamond Coated Low Helix Drill for Composites List 7520 SPEED FEED P310 CARBIDE DIA 5˚ Low Helix Tolerance 130° +0/-0.001” d l FL L Flute Taper Overall Shank Approximate Hole Size Drill Size EDP Length Length Length Diameter Number Fractional Wire Letter mm Inch FL l L d Size Gage Size 752009816 - #40 - 2.50 0.0985 15.2 7.0 2.50 50.8 752012916 - #30 - 3.28 0.1290 20.3 9.0 3.27 752016116 - #20 - 4.10 0.1615 25.4 11.2 4.10 76.2 752019216 - #11 - 4.86 0.1915 27.9 13.2 4.86 752022116 - #2 - 5.63 0.2215 33.0 15.2 5.62 88.9 752025116 1/4 - - 6.38 0.2510 38.1 17.2 6.37 752031316 5/16 - - 7.96 0.3135 48.2 21.4 7.96 752037616 3/8 - - 9.55 0.3760 58.4 25.6 101.6 9.55 752043816 7/16 - - 11.14 0.4385 66.0 29.8 11.13 752050116 1/2 - - 12.73 0.5010 76.2 34.0 127.0 12.72 Packed: 1 pc. Available Diamond coating only. Drills are oversize over nominal. Work Material Carbon Glass Aramid Honeycomb Carbon Carbon Carbon List No. Fiber Fiber Fiber Carbon/ Fiber/ Fiber/ Fiber/Al/ Ti/ (CFRP) (GFRP) (AFRP) CFRP/Nomex GFRP/Nomex AFRP CFRP/Al Al/Al Carbon Aluminum Titanium CRES Stack Stack Stack 7520 Good Best 168 Composite Drills WWW.OSGTOOL.COM