Homemade Wooden Coax Compression Fitting Tool




Introduction: Homemade Wooden Coax Compression Fitting Tool

About: Why buy when I can make?

Here is my Homemade Wooden Coax Compression Fitting Tool. I needed a Compression Fitting Tool to make my own cables but I did not want to pay $10-35 and I wanted to see if I could make my own. This tool is inexpensive and portable.

My project was inspired by another Instructable: https://www.instructables.com/id/HOWTO-Compression-Connectors/.

Step 1: Supplies & Tools

3/4 inch hardwood
Coax coupler
Washer (Metal or Plastic)
J-B Weld (super strong two-part epoxy)
Caulking gun

Drill (not shown)
Hole-saw blade (1 3/4", to fit the body of the caulking gun)
Drill bits (1/4", 3/8" & 5/16")
Wood file
Metal file
Bench vise (not shown, to hold disc & washer while cutting slots)

In the picture:
Top row - Hole saw blade, drill bits (1/4", 5/16", 3/8"), metal file, rat-tail file, metal saw, coping saw
Bottom left - J B Weld

Step 2: Cutting the Holder and Pusher

I put a 1 3/4" hole-saw blade in my drill and cut two discs from 3/4" hardwood; plywood or particle board would be OK too. If you don't have a hole-saw blade you can cut little octagons (stop signs).

I then sanded down both pieces.

Step 3: Making the Holder

For the Holder (left in the picture) I expanded the initial hole with a 3/8" drill bit and a rat-tail file until I could fit a Coax coupler snugly (or you can hammer it in). I secured it with some J-B Weld.

The second picture shows a dual coupler with wallplate I got at a dollar store.

Step 4: Making the Pusher

For the Pusher (right in the picture) I expanded the initial hole with a 1/4" drill bit and the rat-tail file, then I cut a slot with a coping saw and used a wood file to clear the path until a Coax cable could slide in snugly.

After the first use I noticed that the blue collar was leaving a mark in the wood so I added a metal washer. I cut a slot in it to match the wood, cleaned up with a metal file. Held on with J-B Weld too.

Step 5: Using the Homemade Wooden Coax Compression Fitting Tool

1) Cut Coax wire with Flush Cutters
2) Strip the Coax wire
3) Slip the Compression fitting on the wire
4) Screw the fitting onto the Holder (coupler, Picture #1)
5) Slip the Pusher on the wire up to the end of the fitting (Picture #2)
6) Put the whole assembly into a Caulking Gun (Picture #3)
7) Squeeze the Caulking Gun handle until the fitting is fully 'compressed'
8) Admire the fitting (Picture #4)

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    2 years ago

    I think this is very cool and I needed it and I making it right now and we’re going to see if it worked really good!

    Greenish Apple
    Greenish Apple

    Reply 2 years ago

    Cool. It works well with a strong caulking gun, cheap ones (like most I have) deform the pusher plate that goes into the caulk tube. So it is good for a few connectors, which is all I need.


    7 years ago on Introduction

    A big thank you! Saved me from having to buy a $20-30 tool to replace one connector. Worked like a charm!


    10 years ago on Step 5

    Nicely done! you could also make additional pusher blocks to accommodate RG11, etc.


    10 years ago on Introduction

    Very cool, I like making my own tools too! Unfortunately I had bought one of these long before you made this. Great job!


    10 years ago on Step 5

    This is a great Idea if your in a pinch! My engineering staff has a tendency to lose the compression tool for this and they are expensive. If I put a big chain on this and paint it hot pink maybe they will keep it around!!