Same as the No. 15, with the addition of a Duplex Spring.
The spring provides extra flexibility to the hand-piece. Duplex springs are subject to breakage. We recommend that only experienced users of flex shaft tools whose work demands the added flexibility consider purchasing this style hand-piece. For most users, the "straight" hand-piece is the preferable solution.
Length: 9-5/8"
Diameter: 1/4" at tip
Weight: 5.2 oz
Member of the Foredom system of "Quick Disconnect" handpieces.