Knurling with a threading tool - video

[mklotz]

Although I've never tried it, I suppose one could do something similar on a manual lathe by single-pointing a right-hand and left-hand thread onto the workpiece.

I'm not a great fan of knurling. It's fine on small adjustment screws, etc. that are only operated infrequently and with little pressure. With anything that is handled frequently or grasped firmly, e.g. hammer or screwdriver handle, knurling is unkind to the hands. Shallow fluting gives a good grip and is kinder to the hands. Jeweler's screwdrivers are often knurled, but I have yet to see a larger commercial driver with a knurled handle.