Funny Fluted Drill Bit

azshadeguy

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Funny Fluted Drill Bit
I hope the pictures come out so you can see the flutes.IMG_2051.JPGIMG_2051.JPGIMG_2050.JPGIMG_2049.JPG
Is this a special drill bit or a fluke?IMG_2049.JPGIMG_2050.JPG It looks like it's bent but it is straight.
The only markings are /64
 
That had to be made on purpose, I wonder what the purpose was...
 
I've seen similar drills. My guess is that they are improperly heat treated and get twisted while in a bind. At the cutting end, it appears to have a LH twist, but other parts have a RH twist. And there is the sort of no-twist area of transition. I can't think of a valid reason to make a drill with that configuration intentionally.
 
It looks like it’s twist was unraveled. If you roll it it’s straight? In the fifth or sixth picture it sure looks like it’s got a droop.
 
i have seen that happen, telephone installer drilling a hole through the wall. Drill bit wound up with insulation and the drill motor unwound the bit. Staid pretty straight too.
 
Drill bit to drill Maple trees for sap?
 
I have one similar somewhere in the shop. I haven't seen it in a few years.
 
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