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Update: I saw a crew in Tampa using a 6-inch knife for a 20-foot seam and it made me cringe.
That's a sure way to get a wavy, weak seam that'll fail in a year. Anyone got a good brand for a 12-inch seaming knife they actually trust?
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the_oscar7mo ago
I mean a 6-inch knife for a 20-foot seam is just asking for trouble. The real issue is the number of passes, not just the knife size. You need a longer tool to get a smooth, consistent bead in one go.
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logan_gonzalez7mo ago
Absolute madness, saw the same thing on a job last month. Guy was basically doing a hundred tiny sections, looked like a topo map when he was done. A longer knife forces you to commit to the whole run, way less room for error. My go-to is the Hyde 12-inch, the handle's solid and the blade doesn't flex much. Once you use a proper tool for long seams you'll never go back.
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tara6237mo ago
My old foreman used to say the knife length should match the drywaller's arm span. He'd make us measure from fingertip to shoulder before picking a blade.
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