New tool for milling drive shaft splines

Cutting tool manufacturer Horn has introduced a mill with indexable inserts for machining external straight or involute splines on power take-off (PTO) shafts. They are used for transferring power from the engine of a tractor, via a secondary output on the transmission, to attachments that do not have their own drive, such as a mower or trailer. A stub shaft with a matching internal spline protruding from the tractor’s gearbox connects axially with the PTO shaft’s external spline to effect power transmission to the attachment.