Wallboard's trade quality Ply Mitre Box makes cutting 45 degree angles in most standard size cornice simplep>
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Made from constructio**grade plywood
Cuts at 45º
Sides and base are 20mm thick and glued together for added strength
Steps i**base of mitre box accommodates 55mm, 75mm and 90mm cornice
Cuts are not full depth to maintai**strength while box is i**transit
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