H.10 is a slender handpiece with rotating lever action that releases and closes the collet for quick and easy changes. It is one of the few Foredom handpieces that requires some lubrication. Be sure to read/download Handpiece Instructions. For use only with 2.35mm (3/32″) burs. 7-3/8″ long, 21/32″ dia., wt: 4.55 oz  Please call us for additional Foredom items or parts not listed on this website.