Toolholder is commonly used spare parts for milling machine,this is problem to frequently change. Toolholder underside increases, completely covering the lower part of the tool holder, to ensure close contact with the upper and lower surfaces.When the seal between the top and bottom to prevent debris Snap fine milling operation.If toolholder hole come into the material and so on, the rotation of the cutting tool will reduce.Due to improve the rotation of bits ,the life of cutting tools increaser than before.New toolholder is easy to change and be used to working staff.
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