You have probably accumulated the essential tools during your apprenticeship like screwdrivers, wire cutters, wrenches, and crimping tools in your toolbox for maintenance are repairs. However, as you progress in your career, you will realize that you actually don’t need to buy every tool. You can simply modify some of the tools you already have to save you some bucks.
Also, there are plenty of times you will find yourself in the field without a specific tool that you urgently need to use.
Modifying Wrenches
Wrenches are some of the easiest tools to modify.
Back in the day, this is what mechanics routinely did. And although manufacturers now make wrenches in all types and sizes – sometimes you’re on a jobsite and discover you need something specific but because you don’t have time to drive all the way to the city just to get it.
So you are left to get creative with the tools you already have. Let’s take a look at how you can modify your wrenches when the right tool for the job isn’t available.

Short Wrenches
For instance, if you have a long wrench (7/8 wrenches) and need to use a short one. You could simply cut it off at the middle or from any point to get your desired length.
Weld to join the two pieces, sharpen the edges, and voila! You have a short wrench.
Long Wrenches
You can also make long wrenches by using two stubbies. Simply cut the ends, weld, and join the two pieces.
Elbow Wrenches
You can also modify a wrench to help in those times when you are not able to reach a bolt. This happens a lot with electrical-type repairs when you need to access hard-to-reach places – like when we had to troubleshoot wipers on a Komatsu excavator.
Simply heat up a 9/16 wrench to make it malleable, then bend it a little bit.
Interested in other kinds of DIY guides? See our post on assembling a cable harness.