I love modeling tools.  When I go to most shows usually I head for the tool vendors first.

At the Southwestern Ontario Scale Model Expo, I talked with Paul Weber whose company provides quite a large number of tools and supplies for the model builder.

Alpha Precision Abrasives – http://www.alphaabrasives.com/

Flex-I-File – https://www.flex-i-file.com/

Profile Accessories – http://www.profileaccessories.com/