Polycrystaline Diamond (PCD) is one of the hardest materials on the planet. Under consistent conditions diamond tools can last 25x longer than carbide tools. Despite the high initial investment PCD tools can result in significant tooling cost savings.
Compression cutters combine both and up cut and down cut spirals to force chips into the centre of the panel. The inwards pressure prevents chipping on either surface.
Up to 10 re-sharpens.
h7 shank tolerance to suit high precision tool holders.