Dave,

I built one in the mid '80 and can vouch for its usefulness and
VERSATILITY!

In my experience the standard equipment is suitable for sharpening/
grinding all cutting tools in the model engineers workshop: I've
sharpened dove-tail cutters to meet an existing 60 degree angle work
piece (slightly off 60 deg.!) 4 and 6 flute end mills on the sides and
ends, threading tool bits for acme and worm threads, etc.

Because it is such a versatile little machine the individual set-ups
can be tedius....I collect dull endmills of a given size and then have
a production run of sharpening.

The standard work holding mandrel works well for endmills up to 3/8"
dia. For 1/2" dia. and larger an air bearing spindle would be a great
help (I don't have one yet, it's high on my to-do list). The larger
dia. work holding mandrels have too much friction which overcomes the
"touchy-feely" necessary to keep the cutter flute on the tooth rest
while pulling on the mandrel and rotating the cutter....3 simultaneous
requirements!

Getting a copy of the instruction book is probably the best way to go.
If, after reading it you still have questions, just post them on this
NG. Good luck!

Wolfgang