When calibrating tools 'eye-balling it' is NEVER good enough in my shop - wooden or otherwise.
Better make sure it isn't Kevin Bacon you let in your shop. http://en.wikipedia.org/wiki/Six_Degrees_of_Kevin_Bacon
I will have to take a Festool to the pawn shop to pay my $ 5.00 marker...
The shop is too clean. (GRIN) Warren
Also try your local lawnmower shop.
Shocking how much cleaner the shop is with a dust collector.
I go to a hobby shop to buy ambroid cement. Great stuff.
(it's an extension cord to a shop light n*****ts!)
Here's one: The place where I shop for groceries is just to the right. Cindy Hamilton
You think maybe a hobby shop might have some contact brushes? https://www.youtube.com/watch?v=BHl4rSdUKbQ