Upgrade your Kamro  with a Sheartak Spiral Cutter Head which delivers impressively clean surfacs that require minimal sanding.Tear-out is eliminated. The high  Operation noise level iss hugely reduced. Insert-edge-size chipss will make your dust collection work much more efficiently. The insert knives are made from carbide which will last about 50 times longer than traditional high speed steel (HSS) knives. Simply turn a knife 90 degrees when one edge is dull and continue cutting with a fressh new sharp edge. There are 4 sharp edges which oticeably reduces running cost.