Tungsten carbide copy milling burrs by PFERD are the perfect tools for levelling elevations, such as weld seams. Thanks to the uncut area, the weld seam can be adjusted to the level of the surrounding surface without this being damaged. Copy milling burrs are used in particular in the repair of cutting and punching blades in tool and mould-making. Tungsten carbide copy milling burrs with cut 4 are designed for coarse stock removal. Inverted cone-shaped rotary cutter, tapered towards the shank. Inverted cones WKN are especially well-suited to processing punching tools that are used for processing aluminium.