NEW VALVE SEAT BORING MACHINES

The reconditioning of cylinder heads, and valve
seats in particular, is becoming an increasingly
important aspect of internal combustion engine
overhaul work.
Bercos great success in this area, where it has been
active for over 25 years, is confirmed by the sale of
well over 1500 of its ASV and ASV/A valve seat
boring machines.
A number of changes have been made to the new
ASV/B model, the version intended for the smallmedium
sized cylinder head range. The quill
diameter has been enlarged to increase the
machines rigidity and, on request, a micrometric
spindle feed device can be fitted to improve
machining precision on the valve seats.

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