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,
Heel-and-toe by allowing a lower gear to keep the engine in the desired rev range. The importance of this is to avoid delay between the driver accelerating after the corner and when the car responds. This is especially true in turbocharged cars where not only is it important to maintain the required rev range for strong positive boost, but the 'blipping' of the accelerator can also be used to maintain turbine speeds and thus avoid turbo lag. This technique ensures that maximum power can be reached the instant the brake pedal is released and the accelerator fully depressed. Rowing is the