Drybox thru-hull fitting

No hassle thru hull for any plastic drybox. PTFE simply sits in the fitting and can be replaced with the plug for long storage time. I recommend 0.10 or 0.12 mm layers so you have a nice screwing10 mm drillbit needed for instalation : please set rpm as fast as possible and don't push too hard otherwise you will break the lid ! Smaller pre-hole recommended. Commercial license available, contact me.