plumbing - How to remove old 1-3/8 drain strainer from a bathtub

I am trying to remove a bathtub drain as the first step of replacing the tub waste and overflow assembly but this first step has me stymied because every method I have tried to unscrew the old d

Don't Buy the Tubshroom Until You Watch This! Tubshroom Ultra Edition Bath Tub Drain Strainer Review

plumbing - Struggles replacing bathtub drain - Home Improvement Stack Exchange

ALL METAL CONSTRUCTION: Fabricated with HEAVY DUTY Die-Cast Zinc and Solid Brass, ensuring durability and longevity. ISO 9001 and ISO 14001 certified

SENTO Nickel Tip-Toe BathTub Drain Trim Set Assembly Stopper Kit, Fit both 1-1/2 Inch or 1-5/8 Inch Strainer and Stopper, Heavy Duty Metal with

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plumbing - How do I replace a broken bathtub drain? - Home Improvement Stack Exchange

DIY Bathtub Drain Removal and/or Installation Tool and Procedure

1-3/8 in. NPSM Fine Thread Twist-and-Close Bath Drain Plug in Polished Chrome D331-F-26 - The Home Depot

plumbing - How to remove old 1-3/8 drain strainer from a bathtub? - Home Improvement Stack Exchange