Restoring & Upgrading a 1960's Stanley Utility Knife! (And Also Adding a Spring Action & Cutaway!)

Hello everyone!!

In this Instructable I'll show you how I cleaned up & upgraded a vintage Stanley Utility Knife.

Finding a good USA-made knife these days can cost upward of $100 so I decided to show that while not the same, on a limited budget you can have both an aesthetically pleasing and functional tool!

I also thought it'd be cool to add a spring to help the blade return a little smoother and a cutaway to show off the spring action!

The Utility Knife:

1960's Stanley Utility Knife

Cleaning & Polishing

Sandpaper (I used 320-500 grit)

Steel Wool (I used 000-0000)

Upgrades:

Small Spring (I got this one out of a scrap DVD player)

Phillips Head Screw

Tools Used:

Flat & Phillips Head Screwdriver (for the main body screw)

Low Torque Drill

Drill Bits (sizes 1/16 & 1/8)

Automatic Center Punch (for hole layout)

Needle Files (I used a triangle, round, & half round)

Needle Nose Pliers (for the spring)

Razor Blade (I used this to clean out the spots that the sandpaper missed)

For this project, I chose a 1960's Stanley 10-099 that I had laying around.

Both the simplicity of the knife (only 4 total parts excluding the blade) and the fact that you can pick up these vintage USA-made utility knives for under $10 makes this the ideal candidate for this project!

After some experimentation with a palm sander and belt sander, I decided to remove the paint by hand sanding to ensure the removal of as little material as possible.

All of the nooks and crannies were hard to get at with sandpaper and steel wool, but I wasn't too worried about it looking perfect, and I ended up liking the patinaed blackwash finish!

After roughly seeing where I needed to drill the holes for the spring, I marked the hole locations with a center punch and then drilled them with a 1/16 drill bit.

For the first (and ugliest) hole, I roughly marked out the hole locations with a center punch and then proceeded to drill a pilot hole with an 1/8 inch drill bit. After trying to upsize the hole with a 7/32 bit, I realized that it was walking around too much because of the interference with the rib on the opposite side, risking both damaging the surface finish and resulting in a terrible looking hole. I then decided to use a 1/16 bit to drill a much smaller hole before upsizing to only an 1/8 hole, hoping to correct this with the needle files.

After connecting the holes with a triangular needle file, I tried my best to make the top and bottom surfaces parallel with the flat side of the half-round file before rounding the corners with the round file.

What the title says! I continued sanding it up through the grits, finishing with #000 and #0000 steel wool to give it a work-satin finish.

Overall I'm pretty happy with how it turned out and would love to hear any thoughts and/or suggestions on how I could further improve it!

Thanks for reading, and I hope this inspires you to build something cool!