2013/8/13 John Thornton <bjt...@gmail.com>

> This is the metric dictionary if anyone wants to convert the pitch and
> drill sizes to mm
>
> # Metric Drills change inch drills to metric and your set
>        # tap size, pitch, 75% drill, 75% drill diameter, 50% drill for
> steel, 50% dia
>

John, could you, please, explain, what do those 75% and 50% mean?

-- 
Viesturs

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