Allowing for almost invisible repairs, this blade will fit biscuit jointers and allow you to patch repair such things as sap pockets and splits. Cutting a special tapered slot with a maximum length of 65mm x 8mm wide that tapers and 13mm deep. You then insert a Lamello patch and plane/sand flush. Less plunge depth of the blade will result in a shorter repair. The 100mm disc has 4 tungsten carbide industrial cutting teeth, its anti-kick back design ensures safety and its balance and design cleanly cuts. The disc has a 22mm bore. Patches are available in either Pine, Oak or Mahogany.