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carbide cutters. While I agree that the operator is the single biggest influence in the quality of the valve job, there are limitations with traditional cutters that don't exist with a single point cutter. Automotive Machine quoted me $160 per head to cut the seats with a Newen, vs $89 for a standard Serdi valve job. For that incremental cost vs the benefit, I consider traditional cutters obsolete. FWIW, the cost of the Newen starts at 75k. More info here: [ http://www.newen.com/assets/PDF/CONTOUR-BB-2010-EN-WEB.pdf ]
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