Drill America
Drill America Cobalt Aircraft Extension Drill Bit 7/16in 6in
A 7/16 inch cobalt steel aircraft extension drill bit with a 6 inch overall length and a heavy-duty split point for hard metals
- TypeDrill Accessories
- 7/16" cobalt steel resists heat and wear
- 6" overall length reaches deep or awkward holes
- Heavy-duty split point starts on contact without wandering
- 4-1/16" flute clears chips efficiently for smoother drilling
Drill America Cobalt Aircraft Extension Bit
This 7/16-inch cobalt steel drill bit has an overall length of six inches and a flute length of 4-1/16 inches. The heavy-duty split point design helps start holes cleanly in tough materials. It is built for extended-reach drilling tasks where standard bits cannot reach.
Suited for deep-hole drilling in metal
Mechanics and fabricators who need to drill through thick steel or aluminium at a distance will find the length and cobalt construction useful. Buyers who need a shorter bit for tight spaces or a different diameter for other fastener sizes should look at other options.
Highlights
- 7/16" cobalt steel resists heat and wear
- 6" overall length reaches deep or awkward holes
- Heavy-duty split point starts on contact without wandering
- 4-1/16" flute clears chips efficiently for smoother drilling
Specifications
| Brand | Drill America |
|---|---|
| Type | Drill Accessories |
Questions about this item
How does the 7/16 inch diameter translate when the bit is chucked into a standard drill?
The decimal equivalent is .4375 inches, so the shank fits any three-jaw chuck that accepts up to 1/2 inch capacity.
What does the 6 inch overall length actually limit when drilling deep holes?
With a 4-1/16 inch flute length, the effective drilling depth is roughly four inches before the shank contacts the workpiece.
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