|Primary Criteria||For stainless steels in general when no coolant is allowed.|
For all heavy-wall tube and some chrome/molybdenum steels.
|Mild steels and some thin-wall stainless steels when coolants are permitted and applied.||Thin-wall mild steel and tube with coolants.|
|Surface travel per minute||200 in.||250 in.||300 in.|
|Surface travel per minute (Metric)||508 cm||635 cm||762 cm|