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I haven't seen this posted before but something that should be done. I just got a new 4 jaw chuck for my wood lathe, and as you open the jaws at some point they stick above the body of the chuck. Something I've done for years is on any metal lathe chuck I've installed, open it all the way and take a file, hand grinder, die grinder etc and round off the sharpe edges of the jaws. Even the front edges of the jaws also. They are very sharp and can casue a bad cut when spinning and you touch them.
I realize you shouldn't be sticking your hand in a spinning chuck, but on occasion I will grab the chuck to stop it if its almost stopped spinning.
Rounding the edges is a practice that most maintance guys do as they are installing a new chuck for the first time.
Those jaws are very sharp on top, don't ask how I know. I forgot that I never rounded the edges and now I'm missing a little hunk of hide. Ouch
I realize you shouldn't be sticking your hand in a spinning chuck, but on occasion I will grab the chuck to stop it if its almost stopped spinning.
Rounding the edges is a practice that most maintance guys do as they are installing a new chuck for the first time.
Those jaws are very sharp on top, don't ask how I know. I forgot that I never rounded the edges and now I'm missing a little hunk of hide. Ouch