Type J Cobalt 6” Extension Aircraft Drills

 Extension Aircraft Drills

Type “J”  6” aircraft extension drills are made from heat resistant cobalt steel  and are heavy duty construction for drilling high temperature and high strength alloys. They are furnished  with a 135 degree split point to NAS specifications. Treated with a bronze oxide for wear resistance and identification.   These cobalt drills made to NAS 907 specifications are used in tough to reach locations.  Split points make starting easy and the short flute length and long flexible shank are designed for difficult to reach drilling.

Our fractional size  type "J" drills made from heat resistant cobalt steel are heavy duty construction for drilling high temperature and high strength alloys. These 6" long extension drills are furnished  with a 135 degree split point to NAS specifications and are treated with a bronze oxide for wear resistance and identification.

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Our wire gage size  type "J" drills made from heat resistant cobalt steel are heavy duty construction for drilling high temperature and high strength alloys. These 6" long extension drills are furnished  with a 135 degree split point to NAS specifications and are treated with a bronze oxide for wear resistance and identification.

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Our letter size  type "J" drills made from heat resistant cobalt steel are heavy duty construction for drilling high temperature and high strength alloys. These 6" long extension drills are furnished  with a 135 degree split point to NAS specifications and are treated with a bronze oxide for wear resistance and identification.

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