Grizzly T1147 Kerfing-Mahogany Triangle/Beveled Apply the binding on the sides to hide the side joint and apply purfling on the top to hide the binding joint Glue the kerfing to the edge of the bent sides and then glue the soundboard and back to the flat, exposed portion of the kerfing - this completes the &#34;box&#34; construction of the body Kerfing is one of the most critical components of the body on an acoustic guitar We carry the six best selling versions that numerous plants as well as custom builders use