A retractable utility knife is part of the cutting tools I bought for the build kit.
The featured Amazon option is WORKPRO Retractable Utility Knife.
Where it fits my build
My Day 87 plan put the body openings ahead of the aluminum framing, flooring and wall panels. I specifically included the shower drain and the openings for three water tanks in that order of work.
I removed cargo tie-down hardware to leave mounting points for the extrusion framing, and removed door trim for the later insulation and paneling. SketchUp helped me plan how those separate jobs would fit together.
The cargo floor during my preparation session before sound deadening.Removing stuck-on residue during the floor cleanup.
My build notes
The useful part of this diary entry is the sequence. I wanted to finish the drilling while the interior metal was bare, so later work would not mean opening finished surfaces again.
The photographs show my preceding floor-preparation session. Sweeping, washing and removing residue created the starting point for the interior work I described next.
I planned the openings and mounting access before enclosing the interior.
Alternative products
Two alternatives to compare
WORKPRO uses a retractable blade, while the Milwaukee Fastback folds its blade holder. The Pohaku alternative adds a knife to a folding multi-tool with other functions.
Milwaukee Fastback Utility Knife
This utility knife folds its blade holder into the handle. The handle includes storage for spare blades.
This folding multitool combines pliers, a knife and several small hand tools. A nylon sheath keeps the folded tool together with a portable equipment kit.