Corrugated cutoff knives slice through cardboard using a spin action, trimming it to a set length. These knives are sometimes called guillotine knives since they can halt the cardboard precisely. Typically, two blades are used together. At the spot where they cut, they act like regular scissors, but along the blades' lengths, they perform more like curvy snips.Simpler yet, Corrugated cutoff knives spin to cut cardboard to size. They're also known as guillotine knives, stopping cardboard exactly. Two blades work in pair - straight like scissors at the cut, and curved like shears elsewhere. Material: High speed steel、 Powder high speed steel 、embedded high speed steel Machine: BHS®,Fosber®,Agnati®,Marquip®,Hsieh Hsu®,Mitsubishi®, Peters®,Oranda®,Isowa®,Vatanmakeina®,TCY®,Jingshan®, Wanlian®, Kaituo® and others