The #5 Jack is rightly named as the jack of all planes because it can work as a smoother and is about long enough to do a reasonable job of jointing.
The Kunz #5 Jack plus is one of the premuim range from Kunz with an annealed cast iron body which means it is virtually unbreakable. It has a Norris style single screw for both blade feed and lateral adjustment and Cherry wood handles. These planes are very handy due to the low front knob and the low construction. The short, extra thick 3.5 mm thick iron gives additional space at the rear handle. Cutting angle 45°.
Blade thickness 3.5 mm, Blade width 50 mm, 2100 g.