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Cobalt HSS Drill Bits, AS907 Jobber Length Drill Bits, AS907, Letter Sizes R15CO - Cobalt HSS, Heavy Duty, Bronze Color Oxide, 135° Split Point Manufactured to National Aerospace Standard 907. Made of heat resistant cobalt. Used for drilling in tough, high tensile strength materials like PH stainless steel, titanium and Inconel.   Letter Diameter Decimal Equivalent Flute Length, Inch Overall Length, Inch Pkg Qty Price Pkg. R15CO EDP # Purchase Online A 0.2340 2.6250 3.875 12 $102.24 46515301 Buy Now B 0.2380 2.7500 4.000 12 $117.60 46515302 Buy Now C 0.2420 2.7500 4.000 12 $117.60 46515303 Buy Now D 0.2460 2.7500 4.000 12 $132.48 46515304 Buy Now E 0.2500 2.7500 4.000 12 $103.44 46515305 Buy Now F 0.2570 2.8750 4.125 12 $116.16 46515306 Buy Now G 0.2610 2.8750 4.125 12 $117.60 46515307 Buy Now H 0.2660 2.8750 4.125 12 $132.48 46515308 Buy Now I 0.2720 2.8750 4.125 12 $124.32 46515309 Buy Now J 0.2770 2.8750 4.125 12 $132.48 46515310 Buy Now K 0.2810 2.9375 4.125 12 $132.48 46515311 Buy Now L 0.2900 2.9375 4.125 12 $150.48 46515312 Buy Now M 0.2950 3.0625 4.375 12 $159.60 46515313 Buy Now N 0.3020 3.0625 4.375 12 $159.60 46515314 Buy Now O 0.3160 3.0625 4.500 6 $88.20 46515315 Buy Now P 0.3230 3.3125 4.625 6 $93.72 46515316 Buy Now Q 0.3320 3.4375 4.750 6 $97.20 46515317 Buy Now R 0.3390 3.4375 4.750 6 $97.20 46515318 Buy Now S 0.3480 3.5000 4.875 6 $118.92 46515319 Buy Now T 0.3583 3.5000 4.875 6 $118.92 46515320 Buy Now U 0.3680 3.6250 5.000 6 $118.92 46515321 Buy Now V 0.3770 3.6250 5.000 6 $131.16 46515322 Buy Now W 0.3860 3.7500 5.125 6 $131.16 46515323 Buy Now X 0.3970 3.7500 5.125 6 $131.16 46515324 Buy Now Y 0.4040 3.8750 5.125 6 $138.96 46515325 Buy Now Z 0.4130 3.8750 5.125 6 $151.32 46515326 Buy Now