#40 Aircraft Extension Drill Bit 6" Overall Length HSS Made in USA

#40 x 6" Long Aircraft Extension Drill

High Speed Steel

1-3/8" Flute Length

.0980 Decimal Equiv

Made in USA
The Drill America Logo displayed on this page is not intended to imply that the product is USA Made. Items made in the USA are marked accordingly, and a USA Flag is displayed near or next to such items.
SKU: D/AA/CX640 Product Size: #40 Weight: 0.2 lb Condition: New
Regular Price: $4.81
On Sale! $4.33 for Pack of 2 Bits
That's only $2.1654 per Bit
of 2 Bits
California residents see: Proposition 65 WARNING


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#40 Aircraft Extension Drill Bit, 6" Overall Length 

This Number 40 American Made Aircraft Extension Drill Bit is surface treated and manufactured to National Aerospace Standard 907. 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, reduces chip welding and improves chip flow.  Sizes smaller than #52 and 1/16" have the 118 degree standard point.

This Drill America D/AA/CX640 6" Number Size Aircraft Extension Drills USA MADE typically ships within 24 to 48 hours