Below is a video
demonstrating the usefulness of Newen's EPOC valve seat cutting
machine for heavy duty cylinder heads. Newen have a wide range of
machines, ranging from the Contour BB for smaller, lightweight
heads to the Contour EPOC XL, for heavy duty heads, such as those
found on marine engines. More information about Newen and their
various machines can be found
here
and here.
Contour EPOC Heavy Duty
Further video demonstrations of
Newen's various seat cutting machines and their capabilities can
be found by clicking
here.