H.20SJ is for use with only 2.35mm (3/32″) shank burs. A lever action on the the handpiece body is all that is required to change accessories. It has a molded plastic front grip with tapered sides for easy and close handling, plus pre-lubricated ball bearings that do not require additional lubrication.
Use with European flexible shaft machines and Foredom flex shafts fully equipped with slip joint style shafting. Cannot be used with standard key tip style shafts.
The collet in this handpiece can be replaced and/or adjusted if the hold on a bur shank is not secure. Please view the video for instructions on making collet adjustments.