599999 Disclosed is a replaceable wear part device (22) for attachment on a forward edge (2) on a work tool (1). Wear part holders disposed on some types of tools are exposed to high levels of wear as well as the wear part, therefore the benefits of a replaceable wear part are lost as both the wear part and holder must be replaced simultaneously. The replaceable wear part (22) disclosed reduces the exposure of a wear holder to high levels of wear. At least a portion of the forward edge (2) of the work tool (1) has is formed of a wear part holder (21). The wear part (22) is provided with a first sliding surface. The wear part holder (21) is provided with a second sliding surface. The second sliding surface is an extension of said first sliding surface. The second sliding surface is provided with a forward sliding edge surface defining the sliding surface against the wear part (22). A protrusion (224) is arranged on the first sliding surface. The protrusion (224) is arranged to lead material flow (F) away from at least a portion of the sliding surface of the wear part holder (21), characterized in that the protrusion (224) has an extent essentially cross-wise of the operative direction of movement (R)of the work tool (1).
