Indiana machine tools, an iso company manufactures and offers billet shearing machines. These are made out of tested rolled plates. The drive gears are fabricated out of forged en-9/19/24 steel, which is duly hardened and grounded. En - 8/9 steel is used to manufacture the shaft / crank. These machines are provided with copper alloy gun metal bushes and supreme quality bearings, which are highly durable.