NOVA faceplate rings are a safe and secure holding method, when first mounting a blank ready for turning the back of the bowl. Using a faceplate ring rather than a separate faceplate offers several advantages. Convenient, the ring fits directly onto your NOVA chuck (with the appropriate jaw fitted). There is no need to remove the chuck from your lathe. It is a strong mounting method, even with irregular sized wood and rough cut surfaces. Most importantly, using a faceplate ring guarantees accuracy between the outside and inside of the bowl. Turning takes place on the same threaded item thus assuring complete concentricity.