My Handy can tap for r134a bottles had its plastic handle broken the last time I used it. I can't understand why the manufacturer didn't use a metal handle. Anyhow, I have to fix this handle issue and this is how I went about it.
Step 1: Disassembly.
Using a Spanner I removed the top holding nut then unscrewed the puncturing pin. This pin has a seal on it that I also removed.
Step 2: Getting a New Handle.
I cut a short length of copper tubing to use as the replacement handle. Using my birdbeak pliers, I crushed the centre a bit to make it flat.
Step 3: Preparing the New Handle and Puncturing Pin.
I filed the flat surface of the puncturing pin where the original handle went. Next I wet that surface with electronics grade solder. The same I did for the copper tubing. Now both are ready to be joined.
Step 4: Joining the Handle and Puncturing Pin.
I put the seal back and shaft nut onto the puncturing pin shaft. Next I used a metal clamp to hold the copper tubing and pin shaft together while I soldered them permanently together.
Step 5: Reassembly and Completion!
Once I reassembled the can tap, I took a pic showing the new handle giving shame to the old cracked one.
Hopefully my repaired can tap should last me many years to come!