* Sharp steel cutter removes carbon and glaze
   deposits from piston ring grooves.
* Fits 2" to 5" (51-127mm) pistons.
* Two five-cutters wheels for a total of 10
   groove cleaning sizes:
   1/16 5/64 3/32 1/8 5/32 3/16" 1/4"
   1.5mm. 1.75mm 2mm
* Easy to use.
* DIRECTIONS:
   1.Remove knurled retainer and install 
      correct cutter wheel with bevel faceing 
      away from handle.
   2.Replace knurled retainter.
   3.Squeeze handle to release adjuster from
      teeth  
   4.Place “J” shaped end of tool over piston 
      and into groove to be cleaned.
   5.Squeeze handle to adjust cutter wheel 
      until seats firmly into groove.
   6.Gently pull handle around piston in
      direction of arrow