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STAINLESS STEEL PORT INSTALLATION - A STEP BY STEP GUIDE
Start

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Step 9: Counter Bore

View: Outside Your Boat
  • Counter bore about ½” deep using a 5/8” counter bore with a 3/8” pilot
  • Counter bore and pilot available through NFM


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Create Template
Trace Finishing Ring
Trace Offset
Cut Offset and Holes
Template on Cabin
Countersink
Drill Holes
Counter Bore
Chamfer Edge
Dry Fit Port
Wrap Spigot
Wrap Mainframe
Fill Gaps
Prep Finish Ring
Bolt Port Together
Clean Up Butyl
Finished Install