For cutting both parts of a joint, simultaneously for perfect results. Up to 300mm width capacity and suitable for most 1/2″ & 1/4″ routers. Features quick action eccentric clamps and 1/2″ comb table. For cutting both parts of a joint, simultaneously for perfect results. Up to 300mm width capacity and suitable for most 1/2″ & 1/4″ routers. Features quick action eccentric clamps and 1/2″ comb table.