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| Some blades built to handle hardened objects such as frozen foods are formed with an alternating blade construction containing sets of double-toothed blade extensions separated by curved and serrated blade surfaces. Made from a rigid steel, a saw and raker blade can withstand very cold temperatures and the heavier than normal cutting pressure required to cut through ice hard substances, such as frozen foods. The forward and backward motion required for cutting hardened objects will cause flexible blades to bend or quiver which is eliminated by using a rigid, saw and raker type blade, since the raker helps to keep the blade in the track created by the cutting edge. |
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