This test cover the determination of the consolidated drained shear strength of a soil material in direct shear. The Digishear machine, with digital control and display of speed, is driven by a high resolution stepper motor and worm reduction unit. Can accommodate all standard specimens up to 10 cm square and 10 cm dia. The vertical load is directly applied to the specimen through a load frame carrying weights and can be increased using the beam loading device, used to amplify the load on the shear testing machine. It can receive up to 50 kg of weight so that the total load on the specimen can reach 500 N or 5000 N