#30x12" Cobalt Aircraft Extension Drill Conelock10 M12Z XY 1966-1972 (Front)

XY 1966-1972 (Front)

finishing by slotting

HiKOKI 40x65mm Multi Tool Starlock Blade - Metal/Wood

25 Metric Fine Tap Set

900/min medium mode 0 - 2

#30x12" Cobalt Aircraft Extension Drill Conelock10 M12Z XY 1966-1972 (Front)National 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.