Incorporates a planetary gear reverse with a 1:1 ratio. Reversing speed is equal to spindle speed so in-feed and out-feed of the unit can be employed without reversing motor direction. * The tapping unit will tap a 3/4-16 UNF but will not tap a 3/4-10 or larger. For use with HMD904. Order Collets separately (Threaded Drive)

