Rounding the Spine

Sand paper and shoe shine motion worked for me for a long time.

Then I found a power tool that works better for me.

I have a 3M "deburring" wheel on my buffer that will round spines very nicely. At first it's kind of tricky, but after you've done a few the wheel starts to get a groove cut into it and then the spine just fits within that groove and doesn't bounce around. Works great...but I think my wheel was in the $60 to $70 price range and that's all I really use that wheel for. Money well spent IMHO.
 
sand paper & elbow grease, slack portion of my belt sander, drum sander in my drill press, wire wheel on my grinder, sand paper wheel for my drill ;0)
 
I usually do them lengthwise on the slack portion of my belt grinder after breaking the corners against the platen. If there is a thumb ramp or other protrusion I go sideways/diagonal on the slack belt and then finish them up by hand to get the lengthwise finish.
 
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