. I blame reading Big Jim`s motor guide and melting my brain 
.I have owned a Shinwa motor dresser for 20 years, which enabled me to tune motors for RPM and Amp pull, but the rest of this kit I have got this year. With the advent of brushless motors, we seem to be the minority now Ias well as having over 50 vintage motor`s, I use brushed motors in my crawlers and scalers so this lot has been a smallish investment (compared to what these cost when new!)
First up is a rare beasty here in the United Kingdom, this is a Thunder RC motor magnet zapper, my latest purchase only got it this week. I did a 150 mile round trip to collect it as I decided that I didnt want to risk it been thrown around. And 3 gallon of fuel was a bit cheaper than sending a 26lb parcel. I have zapped a 35 turn motor that I had sitting and just zapping the magnets increased the amp pull off load from 1.5amps upto 2.5amps admittedly its a very old can but still thats pretty good.
Next up my Hudy Advanced comm lathe, came with a diamond cutting tip and the optional axial support. This has had some use since I got it, seems that lathing comm`s can be quite addictive. Funny thing about this lathe is that I got it from YZ10 via ebay!
My original Shinwa motor dresser, with an Integy motor dyno that I got from the guy who sold me the magnet zapper. Both useful bits of kit, as they allow you to alter RPM and monitor the amps drawn off load.
This is a Xipp brush cutter and brush serrator, fairly self explanatory this one. But It allows you to experiment with different cuts to the carbon brushes. The serrator allows the brush to bed in easier and also aids the running of the motor, something to do with the brush having more edges in contact with the comm
From left to right, Trinity Spring Thing this simple tool allows you to check the brush spring tension. The other items are Brush hood aligning tools and a brush spring post remover, It is very important to have the brush hoods in line with each other, because if they are not aligned the motor wont run at full power.
Finally a pair of Fussybrush.com brush cutters, these work differently to the Xipp as you install them into the motor housing and spin them with a pinion. Not used these yet as they came with the magnet zapper. They have different heads, one is for brush serration the other is for shaping the brush head. These aparently work better than the Xipp brush serrator.
Thats it for the time being or until I find something else obscure
That's why I was shocked when I recently found out about cotton stuffed hollow brushes. Wish I'd known back then. Anyway, it's great that your doing your part to preserve a dieing art form. 
