* Lightweight Dyninger Air-Powered Abrasive Finishing Tool, for use with Spindle-Mount, Arbor-Mount and Eyelet Sanding Stars.* 0-3,200 RPM, .4 hp. For running arbor-mount abrasive stars or Dynacushion wheel. Includes 12980 Arbor (1/2" diameter) for mounting up to five 4" diameter arbor-mount sanding stars (1/2" center hole). Arbor includes spacers to be used between the stars for added flexibility. (Stars sold separately.)* For whitewood/sealer sanding, light deburring of metal, or fabrication and finishing of composite surfaces.* Excellent for use on wooden parts, moldings, raised panels and intricate profiles. Eliminates raised grain and removes loose fibers when whitewood sanding as well as scuffing sealer coats.* Tool includes 94407 Air-Flow Control Dynaswivel fitting for maximum tool maneuverability and control.