<p>An end prep tool (10) with a pneumatically driven tool slide assembly (30) comprises a mandrel (12) mountable to the internal diameter of a tubular work piece. Mounted on the mandrel (12) are a rotational head assembly (24) and a rotatable housing (22) that are longitudinally displaceable along the mandrel (12). The rotational head assembly (24) carries either one or two tool feed assemblies thereon for orbital movement around the work piece. The tool slide assemblies (30) are driven by a pneumatic motor (36) to provide a true phonographic finish with no tripper marks.
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