This plastic kitchen saw is great for cutting stale cakes or petrified bread. The design mimics a carpenter’s saw, so you can really put some muscle into it, and you might need to, since it’s actually about as sharp as a plastic picnic knife. The 12” long saw is made of polypropylene so it’s food safe and can be washed in the dishwasher.

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Also check out the Pizza Boss Circular Saw: