#21x12" Cobalt Aircraft Extension Drill Product Type_Water Neck Available in a variety of

Available in a variety of lengths and quantities

Sizes - 8 9 10 11 12 13 14 15 17 & 19mm

Chrome plated

This chuck is used when screwed on the JLBM53PA handle (a setscrew ensures the locking of the chuck on the handle) press or laid down flat with the cutting edge of the hollow punch inclined upward for cutting with a mallet

#21x12" Cobalt Aircraft Extension Drill Product Type_Water Neck Available in a variety ofNational 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.