Porta Bore UPB 300 lower counterbore tool. This allows you to machine out the lowers and install repair sleeves. These were developed for Cummins engines mostly but with the right knowledge with machining this tool can do more than Cummins engines.
Porta Bore UPB 300 lower counterbore tool. This allows you to machine out the lowers and install repair sleeves. These were developed for Cummins engines mostly but with the right knowledge with machining this tool can do more than Cummins engines.