The Berner Sleeveanchor BCH in the range of diameters 8, 10, 12, 16 and 20 is an anchor made of galvanised steel. The Berner Sleeveanchor BCH-A2 sleeve anchor in the range of diameters 8, 10, 12, 16 and 20 is an anchor made of stainless steel. The anchor is installed into a predrilled cylindrical hole and anchored by torque-controlled expansion. The anchorage is characterised by friction between the expansion sleeve and the concrete.