Crosscut saw into the wood. Many sawtooth patterns have four cutters; each cutter that cuts to the left of the blade is paired with another that cuts to the right of the blade. Adjacent to the cutters there is generally a raker. The void on either side of the raker is known as the gullet. A raker is what does the actual removal of the wood that is being cut. The raker follows the cutters, paring the bottom of the kerf like a chisel or plane. As the raker pares the bottom of the kerf, a strip of wood is lifted upward,
Twist per inch yarns, be determined by counting the number of bumps in one inch, and dividing that number by the number of singles (the strands plied together to make the yarn). If the adjacent picture, for example, was of an inch of two ply yarn, then the number of twists per inch would be 6 divided by 2, or three, as there are six bumps, and it is a two ply. While this method works well with plied yarns, singles don't have bumps to count. One way to determine the tpi for a single is to add a contrasting color fibre when