H.20D has the same specs as the H.20, except includes a duplex spring for added flexibility. H.20D is for exclusive use with 3/32" (2.35mm) shank burs.
10-1/8″ long, 7/8″ dia. (center), 3/8″ dia. (front taper), wt: 5.4 oz., ship wt. 7.5 oz.
Duplex springs are subject to breakage and are NOT covered by warranty. They are made of special steel, double wound tubular construction with a protective flexible spring cover. Replacement springs (#17-096-1) are available and can be installed by the user. We recommend that only experienced users of flex shaft tools consider purchasing this style handpiece. For most users, the “straight” handpiece (H.20) is the preferred solution.
