a drum cutting machine has a rotary drum and has a plurality of blades arranged along the contour of the rotary drum . the lateral surface of the rotary drum is provided with a multiplicity of holes . a supporting part matches the contour of the rotary drum and has for each of the blades a bearing point that defines the position of the cutting edge . a blade box for such a machine makes it easier to move the blades into the correct position , thereby reducing the complexity in terms of maintenance .