Ivan Vegvary wrote:



Ed, thanks for the insight. I do agree that most machining can be done in
inches and decimal parts thereof. However, at some point you still have to
reach for a drill and get involved with fractions and letter designations.
That part of the process could use some improvement. Why don't they simply
make/package drills in decimal inches?

Ivan Vegvary


Your drill indexes and wall charts do not list decimal sizes?

The three indexes in my tool box, all have the decimal equivalent on
them. The wall chart I use most, has a list of all the "normal" drills
in decimal inch, as well as decimal mm from smallest to largest, showing
the sequence of sizes, of normally stocked drills in the 4 systems that
we use (number, letter fraction, metric).

I am pretty sure we could ****can the whole thing, if we just stocked
the metric sizes in tenths all the way up to, say 25mm, but there would
be a lot that never got used, eh!

Cheers
Trevor Jones