#5 x 6" Cobalt Aircraft Extension Drill MSD6421 Manufactured from case hardened steel

Manufactured from case hardened steel 45 ± 5HRC

unitized frame construction

Acrow Quick Change Tap Collet 10

Heavy-gauge steel cage that restrains the shaft after a failure

- Clear shield to trap shavings and improve visibility

#5 x 6" Cobalt Aircraft Extension Drill MSD6421 Manufactured from case hardened steelNational 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.