Rotary cutting device with drum

摘要

Each worm component has front and end wall surfaces which connect to corresponding surfaces on adjacent worm components. Inner and outer radially spaced wall surfaces, a tool (44) holder accommodation pocket extending radially inwards from the outer wall surface (14) has a tool holder application bush (34) on the innermost part, and a pair of side walls extending radially outwards from the inner wall surface to the outer wall surface are incorporated. At least one wall of the pair of side walls defines a material conveying surface, a through passage extends between the pair of side walls and an opening extends radially inwards from the tool holder accommodation pocket to the through passage.