drill bit sharpener silverline
thingiverse
Tried printing a couple of the versions with true relief angle but didn't seem to fit the diameter/mandrel length of the silverline rotary tool so made one to fit. 118 degrees sharpening with 5 degree relief. Works well for small diameter drills. I used the m20 thread in fusion 360 even though the silverline has a m19 thread. worked first time with no need to fettle the thread
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