The file 'SeaFlo 8 Inch Hatch Cover Tool 3D Printer Model' is (stl) file type, size is 200.5KB.
This is a simple tool that inserts into the depressions of an 8 inch SeaFlo Screw-Out Deck Plate Inspection Hatch.
https://www.seaflousa.com/product/8-screw-out-deck-plate-inspection-hatch/
I find they can be hard to unscrew, so this tool gives you leverage to tighten and loosen the hatch.
It fits snuggly, and can store in place.
SeaFlo_8in_Hatch_Cover_Tool.stl | 597.3KB |