Normal wear and tear on after 1,5 hours?

[Apibeau]

Is this normal damage after 1,5 hours of use with only soft wood? 
 

Eliet major 4s.

 

thanks in advance! 

[Stere]

Soft wood pallets with nails maybe?

[Sviatoslav Tulin]

Soft wood is very wide term it is possible to damage blades in 3 sec , mulching a little brush with some garden ornaments unnoticed, or accidentally put secateurs in it and so on , so your question is. ….. well questionable.It is few nicks  I think everything is ok, light touch with grinder and it’s ready for work.

[Brushcutter]

Are you using it at maximum capacity like the 50mm it can take and is it a lot of wood stuffy rather than hedge clippings. Then yes that looks like normal wear 

[PeteB]

A shredder works very differently from a chipper. Typically, and it is a generality, stuff you put in a chipper ain't for a shredder and stuff for a shredder don't go well in a chipper! Those blades are 'scuffed' about but they will still shredder stuff up,

[marne]

Looks as if it ate something it shouldn't or as there are nicks and dents in chamber missing, there was problem with the shape/seat of the knife holders or the screws where overtightend or a bad batch of knives with hardening defects.