iMac Intel 21.5" Retina 4K Display 2019 Display Assembly Replacement

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Slice through the display adhesive

Use the tool like a pizza cutter—roll it along the gap, cutting the foam adhesive in between the frame and display.
Be sure to always push with the cutting wheel forward. If you pull, the wheel might get pulled out of the handle.
Run the tool up along the left side of the display.

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