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The Isistools tube enlarger is an indispensability work instrument for every zinc worker.

The Isistools tube enlarger our widening rain tubes. We call it a muff. Making a muff on the yard or in your workshop gives you the big advantage making unlimited measure adjustments. No trudging any longer, no loss of the rain tubes, you use every cm.

How does the system work? Very simple and still efficient.

  • Put the tube enlarge into the SDS drill-machine. The tube enlarger and drill-machine are now instrument.
  • Bring the tube enlarger into the tube opening (drill-machine in stop function) untill the conical heads are partial into the tube opening..
  • Start the trill-machine clock-wise and push the tube enlarger into the tube. Now the tube enlarger turns into a self drawing position. Stop the widening when the muff is deep enough.
  • Turn the drill-machine anti-clock wise to remove the tube enlarger.

Our tube enlargers can widen rain tubes made out of copper and zinc (*)

  • Ø60
  • Ø75
  • Ø80
  • Ø100
  • Ø120

(*) electro welded

Isistools Enlargers are easy in use, have a low weight and are precise and competitive in price.