What bit is this?

[myxpykalix]

I have heard reference (somewhere) to a bit described as .125em center finish or a .125 Fish tail bit. I have a couple small 1/8th inch bits that have one "fin" but i've never used it, is that what that is?

[rob_jones]

Fish Tail Bit from http://www.bamanufacturing.com/galleries.html

8323

[myxpykalix]

ahhh, that wasn't at all what i thought it was. thanks.