They're not a perfect 90 degrees, you can see a bit of daylight compared to my machine square, but they're perfectly fine for cabinet building, especially what I paid for them.
πͺ΅ REXBETI Heat Treated Woodworking Carpenter Sharpening
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π§ WORKPRO W043001 Wood Chisel: The Ultimate Tool for Precision Carving and Woodworking
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Astro 1600 16-Piece Punch and Chisel Set
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