Fractional Size-High Speed Steel Aircraft Extension Drills 6" length

These Fractional Size-High Speed Steel Aircraft Extension Drills are manufactured to National Aerospace Standard 907. The 135 degree split point is self centering and reduces thrust. Ideal for drilling in mild steels where extra length for reach is required . They have a black oxide surface treatment that is abrasion resistant, reducing chip welding and improving chip flow. Sizes smaller than 1/16″ have the 118 degree standard point.

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