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Expand the bowl holding capacity of your chuck to 14" without purchasing expensive dedicated super sized jumbo jaws. This extension system attaches directly and easily to PSI 8" Flat Jaws(CJAWFJ2) or PSI Dedicated Bowl Chuck(LCJC8). CJAWFJ2 is compatible with all PSI C-Series chucks. The jaws are made from durable high-density plastic for long lasting precision. You can bandsaw the jaws to any diameter to adapt to the swing of any lathe up to a 14". CRJA includes (4) Jaws with pre-drilled mounting holes, (16) mounting screws, (1) Allen Wrench. Bowl Mounting Pins are not included with CRJA, but are included with CJAWFJ2 and LCJC8. Bowl Mounting Pins, CRJPIN3 and CRJPIN12, are available from Penn State Industries.