Funny Fluted Drill Bit
I hope the pictures come out so you can see the flutes.
Is this a special drill bit or a fluke? It looks like it's bent but it is straight.
The only markings are /64
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.
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.
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