Direct Shear Accessories

Cutters, extruders and porous stones are designed for use together in preparing direct shear soil strength samples, and are available in sizes that correlate to the sample.


  • Cutters come in round or square shapes and are used to precisely trim the sample to fit into a Shear Box.
  • Extruders are also designed in round or square shapes, and easily remove the soil sample from the corresponding size Shear Box when testing is complete.
  • Porous Stones correspond to specimen sizes and are placed at the top and bottom of the soil sample to support the test specimen and allow flow of water.