What is the jaw range for 12" adjustable wrench

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In regards to the 2-in-1 adjustable wide mouth wrench, how do I take out and adjust the jaw so I can switch sides? Also is there any specific surface types the smooth / jagged side of the jaw is more...
What is the max. jaw opening of the 10" pipe wrench (stock code: C0800)?
Has the small adjustable stubby wrench been discontinued? Everywhere I look online it says “temporarily out of stock “ had two I used for plumbing already but lost both on various jobs! Regards, Alan