Allows quick and effortless changing of chuck jaws from one set to another. ½” Easy Reach Dovetail Jaws are perfect for small projects, bowls/platters up to 5” diameter. Includes set of 4 jaws only. Easy Chuck not included. Grips a ½” straight tenon, expands to 1 ¼” and has a jaw length of 1 ¼”. Patented Snap Lock Technology allows changing 4 jaws to another set in less than 30 seconds. Designed and Manufactured 100% in the USA The CJ210 Jaws are optional equipment for our Easy Chuck. The dovetail jaws grip tenons at 1/2"+ and expand in mortises at 1-1/4"+, jaw length is 1-1/4". These jaws work only with the genuine Easy Wood Tools Easy Chucks which are sold separately. Snap Lock Technology - Jaw changes in approx. 30 seconds or less. See Bullet Points for sizing details.