Search results for specialty-plumbing-tools are below:

http://plumbersezhelper.com/

The thin design of the shower wrench lets you access the drain through the narrow hole in the sub-flooring. These tools help reduce your on the job time by letting you get at retainer nuts without removing drain pipes or cutting larger holes in the sub-flooring. -Dick Thomas Specialty Tools

They are patented, and made, right here in the USA of tough A36 steel. -Dick Thomas Specialty Tools

https://www.channellock.com/

Our tools are made with pride in the U.S.A. Founded in 1886, CHANNELLOCK, Inc. is a worldwide leader in the manufacturing of high-quality pliers and assorted hand tools. -CHANNELLOCK