#11x12" Cobalt Aircraft Extension Drill 2321345 15 x 1/4"-28 UNF 1

15 x 1/4"-28 UNF 1

SD Ball Shape Burrs

- To Suit AUDI QUATTRO B7 4WD 2004-2008 (Rear)

Grit: 300 Light Brown

End A Fastener size 9mm End B Fastener size 9mm End B Drive type 12 Point Material Alloy Steel

#11x12" Cobalt Aircraft Extension Drill 2321345 15 x 1/4"-28 UNF 1National Aerospace Standard 907, Type J Cobalt Drills, 6" OAL with Jobber Drill Flute Length, Cobalt Extension Drill, Cobalt HSS, Surface Treated, 135 Split Point These cobalt jobbers length drills are used for drilling in tough, high tensile strength materials like stainless steels, titanium and inconel. They are made of cobalt high speed steel, with heavy duty flute construction and 135 split point.