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#47 x 12″ HSS Aircraft Extension Drill Bit DWDA/CX1247
Original price was: $10.81.$8.39Current price is: $8.39.
Description
Description
Size: 47, Material: High Speed Steel, Finish: Black Oxide, Flute Length: 1, Overall Length: 12, Shank Type: Round, Style: Aircraft Extension, Cutting Angle: 135, Point Type: Split Point, Number of Flutes: 2, Cutting Direction: Right HandManufactured to Aerospace Standard 907. The 135 degree split point is self-centering and reduces thrust. Ideal for drilling in mild steel 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. Sizes smaller than 1/16 and 52 have the 118 degree standard point.
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