Under Crank type Shearing Machine has spring loaded mechanical hold down facility which maintains a positive and uniform pressure along the full length of work piece, avoiding slipping and bowing of sheet, resulting a clean square cut. The Shearing Machine is provided with four edge rectangular type high carbon high chromium knives for longer life. The Shearing Machine is fitted with gun metal bushes, in all running parts. Under Crank type Shearing Machine comes with a rigid and accurate mechanical back gauge and hand operated single shot lubrication system.