The concept of this mould is very similar to that of the TM-N. The main difference is that in this case the mould consists of a plate and casing. This change means it is possible to place a row of brake elements around the mould between the plate and the casing. These brake elements slide into the grooves or offsets made in the underneath part of the casing.

The row of brake elements improves the functioning of the mould and its handling when adjusting the brake function because, as they are situated between the plate and the casing it is not necessary to loosen the mould to make adjustments. As a result, changes are quicker and easier.