Normark Fin Bore III Auger

[Wymen]

Just to give an update... I changed the blades and everything is like new!

 

When I compared the new blades with the old blades.... I found that the old blades did not curve the same way as the new blades. Looks like the apex of the curve was flatten ever so slightly. With regards to sharpness, both were about the same. Who would think that something as simple as an auger contains such precision. I bet that angle was off 3-5° and it threw everything off.

 

I doubt sharpening would have done anything. I think you would need to regrind the blades back to that angle for it to work properly again and I bet it'll require some pretty customized machinery to get the right curve and angles.

 

With this said, I bet there was a whole host of things that I may have done to throw the blades out of whack. I bet if you drop the auger onto the blade any higher than 4-5" would compromise the blades. (just to give a benchmark of how much force is needed to warp the blade).

 

Anyways, Thanks for all of the suggestions!

 

Wymen