Drill tool to alter the holes on PVC pipe 12mm to 16mm - used to make manual drill holes on PVC pipe for fixing 16mm bush (grommet) for the extension of water supply lines in drip irrigation. By altering the hole (12mm to 16mm), you can utilise the old connection instead of make a new connection. This makes an exact 16mm hole in the PVC pipes to fix the 16mm grommet (bush) perfectly and it helps to avoid leakages.
Usage :
a) Manually alter a drill hole on a PVC pipe (12mm to 16mm).
b) Fix the 16mm starter grommet in the drill hole.
c) Connect the 16mm hose with the starter for the extension line.