Disc Harrow is a tractor implement which is attached to the back of the tractor. It is composed of one or two rows of blades, the blade size and number of blades is based on the the Hp rating of a tractor.
The construction of Disc Harrow is composed of thick and heavy metals the most commonly used is the square tube for the body and C- Channel for the holder of blades along with thick plain sheet metal.
The sizes of blades vary on the horsepower rating of the tractor. The most commonly used configuration of this disc harrow is two rows, 9 blades per row and the size of blade is 24″