Roto-Star I is the original Roto-Star. With its 6" 3-jaw self-centering chuck, it will accept parts of virtually any length through its 1½" spindle hole. Larger diameter parts not extending through the spindle can be accepted up to 3¼" outside diameter, or by reversing the jaws, up to 7¼" O.D. Parts may also be held by the I.D., up to 8¾".

Roto-Star I will accept the optional 12" turntable plate. Equipped with three radial sets of tapped holes, and two concentric locating rings, the turntable plate facilitates the fixturing of large or irregularly shaped parts not accommodated by the chuck.