Why are the handles for the pruning saws colored red? Fugaku is another way to address Mt. Fuji in Japan. During sunrise the sun shines over Mt. Fuji and makes it glow bright-red. This miraculous scenery is referred to as the Red Fuji, and has been represented as sign of good luck. Inspired from the Red Fuji, the handles on the pruning saws were colored red. Our pruning saws are available with various blades, and by simply turning the screw on the handle, it can be easily replaced or interchanged according to the need.