Step 3: Know your saw: the combination saw.
The combination saw is a more recent variation on the hand saw. The combination saw will cut with and against the grain ("rip" and "crosscut"), and it will also cut through other materials like PVC and plastic pipe. The combination saw teeth are vertical with their sharpened edges facing each other. The saw cuts quickly in any direction and leaves a slightly rougher edge. When a combination saw blade becomes dull, it can be replaced rather than re-sharpened.
 The combination saw leaves a slightly rougher edge.
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