SHEAR BOX assemblies, made from brass, accurately machined, complete with carriage, walled round or square hole, base plate, two grids, two perforated grids, two porous stones, and adapters to fit the box holder. The grids of the shear boxes are made of Teflon.
| Models | Shear box | Spare porous stone (1 piece) |
| Round specimens Ø 50 mm | S282 | S286-03 |
| Round specimens Ø 60 mm | S283 | S286 |
| Round specimens Ø 63.5 mm | S283-01 | S286-05 |
| Round specimens Ø 100 mm | S281 | S286-04 |
| Square specimens 60x60 mm | S284 | S286-01 |
| Square specimens 100x100 mm | S285 | S286-02 |
