12 Inch Aircraft Extension Cobalt Steel HD Split Point
12 Inch Aircraft Extension
Ideal for drilling in mild steels where extra length for reach is required. They have a black oxide surface treatment that is abrasion resistant, reduces chip welding and improves chip flow. Manufactured to National Aerospace Standard 907.
Manufactured to National Aerospace Standard 907. Made of heat resistant cobalt. 135° split point is self-centering and reduces thrust.Ideal for drilling in tough, high tensile strength materials where extra reach is required. Sizes smaller than 1-1/16 have the 118° standard point.
Manufactured to National Aerospace Standard 907. Made of heat resistant cobalt. 135° split point is self-centering and reduces thrust. Ideal for drilling in mild steels where extra length for reach is required. Sizes smaller than 1-1/16 have the 118° standard point.
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