Handpiece Foredom 8D. This handpiece has the same features as the #8, but with an added duplex spring drive connection and cover. Chuck guard slides back when changing burrs. Measurement 3/4" diameter x 9-1/2" long and weighs 8 ounces. Duplex springs should not be bent more than 30 degrees.
Duplex springs are subject to breakage and NOT covered by warranty