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I've been using a 4.5 inch Nils auger for close to 20 years .In that time I have dulled a few heads and would quickly buy another one to keep fishing without interruption. I finally sent two heads into the authorized dealer in Ashby ,Mass and am pleased with the results. I sent them out last Wednesday and received them back today . Just a heads up for anyone using a Nils in need of sharpening , I highly recommend the Small Engine Repair service in Ashbury !
Just a heads up I have used the guy in ashby a few times when I owned a nils he destroyed the blade. I gave up on nils too complicated to get sharpened etc. I sent 2 blades to a Frank Delucca he did a good job but could only salvage one the other was destroyed in ashby. They have to be cut at just the right angle when sharpened. The blades are way too finiky. Imo if you have to get a Nils dont go bigger than a 6. The blades seem to be more durable than an 8. Way to delicate for my needs. Just my opinion
Yeah i'm hard on blades too. It's why I stayed with chipper blades when I went electric.