Fly the Team Iceshanty Flag! Iceshanty Proshop
If you are drilling through a lot of dirty ice with sand, dirt, trees, leaves and etc or just are hard on blades you cannot beat a chipper blade. They are tough and the flat ones cannot be any easier to sharpen. I use a flat diamond hone and some water to sharpen my Chipper blades. I sharpen my curved hand auger blades with a diamond hone also however they are not as easy as the chippers.
SM has a blade trade program for the chippers. You send them your old dull chipper blade, they recycle them and send you a new one.
I replace mine every season. Can't find the link, But I'm sure you can call the service center.
Up until 2 years ago I ran the original chipper on my magn2000. The problem I had was after so many years the center point was rounded off so I just replaced the bit with a 7 in laser.
Mine is a 2010 solo and I'm pretty sure the points welded on.
Just checked it and it is welded on.