Nils hand or convertible

[iceman70]

Has anyone ever compared the 2 of them as far as, how much easier does the hand one drill by hand then the convertible one. And how much easier is the convertible one on a drill then the hand one. Any feedback greatly appreciated. Thanks

[Sharp Nils]

  The black Slick blades are little less aggressive then the red blades but the difference isn't really noticeable.

[joefishmore]

  The black Slick blades are little less aggressive then the red blades but the difference isn't really noticeable.

Where can you get replacement blades for the convertable or can you use either one ?

[Sharp Nils]

  The red and black blades can be used on any model Nils auger.
 FishUSA are site sponsors and you get find the Nils blades here.
https://www.fishusa.com/Ice-Fishing/Auger-Parts-Accessories