Letter Sizes, Aircraft Extension Drills (USA)
-drills-letter-sizes-aircraft-extension-drills-usa
12" OAL Letter Size Aircraft Extension Drill Bits, Black Oxide
(26)12" OAL Letter Size Aircraft Extension Drills - 135° Split Point - Black Oxide Treated , Straight Shank - High Speed Steel
Use: Drilling in mild steel where extra length is required. 135° Split point is self-centering and reduces thrust.
/Asset/3007-AIRCRAFT-EXTENSION-DRILL-BIT-BLACK-OXIDE.jpg 6" OAL Letter Size Aircraft Extension Drill Bits, Black Oxide
(26)Letter Size Aircraft Extension Drills - 135° Split Point - Black Oxide Treated , Straight Shank - High Speed Steel
Use: Drilling in mild steel where extra length is required. 135° Split point is self-centering and reduces thrust.
/Asset/3007-AIRCRAFT-EXTENSION-DRILL-BIT-BLACK-OXIDE.jpg