My trusty fluke multimeter has been with me for 12 years. I love it. It's rugged and reliable. The internal fuses however are expensive and not readily available locally. As a substitute I soldered those glass type fuses into the fuse holders. This approach works well but when the fuse blows due to my muckup, it is quite a task to replace it.
Here is how I added an external fuse and holder to my veteran fluke multimeter.
Step 1: The Fuse and Holder.
I have lots of automotive fuses (which hobbyist doesn't?). These are rated to 32vdc and are perfect for my uses. I typically measure up to 24vdc with this meter so it's just right for me.
Step 2: Accessing the Fluke Fuse Holder.
Removing the battery cover gives access to the fuses. The one I have to replace is the 10A one. I unsoldered the blown fuse and made it ready for the new one.
Step 3: High Current Wiring.
Using heavy gauge wires, I soldered them to the fuse holder terminals.
Step 4: Connection of the Holder.
I soldered the fuse holder and used liquid electrical tape to insulate the exposed conductors.
Step 5: Notching the Battery Cover.
I cut a small notch to allow the wires out of the fluke's internals.
Step 6: Completion!
Now my hardy fluke has an external fuse holder that is easy to access on the field and I plentiful fuses to replace blown ones.
Yes I know the pretty factor is out the window but it works well!