Swede,
What I use in spots like this is a small friction blade (bout 3" in dia) mounted in an arbor on my die grinder! Works quite well for smaller stuff and when you say "chop saw", I am envisioning a 12" or so monster!!!
Also, you might want to rotate it some how (slow) and cut around rather than through the shaft. Take it slow and it won't heat up either.
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Art
AKA Country Bubba (Older Than Dirt) |