#40x12" Cobalt Aircraft Extension Drill 6558950 9kg with BSL36B18

9kg with BSL36B18

8 2ZR-FAE 2009-Current (Rear)

With carbide tipped points & plastic case

“Target Torque Alert” gives a warning as you approach the target torque

Thread 3/8" BSB

#40x12" Cobalt Aircraft Extension Drill 6558950 9kg with BSL36B18National 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.