Specifications:
1.Material:4241,M2,M35......
2.Total length:6",12",18"
3.Surface finishing:black,white,tin coated..........

* Right hand cutting direction; standard two flute design.
* Aircraft Extension Drills are heavy duty Jobber Flute Length Drills with an extended
  overall length of 6" or 12" or 18".
* 135 degree split point for quick start and no walk application.
   118 degree point angle design for general purpose are available on request.
* Aircraft Extension Drills are for portable or machine drilling in mild steel, aluminum,
  other soft materials.
* Drill Bits Set are available on request.