During a recent Google search, I located this site that appears to have quite a few tools and other products that are rather uncommon in shops in UTH.
You will need someone to read some of the information, but the search feature on their site accepts English and brought me straight to the tools for which I was looking.
http://thailand.rs-online.com/web/
You will need someone to read some of the information, but the search feature on their site accepts English and brought me straight to the tools for which I was looking.
http://thailand.rs-online.com/web/