Just a feed back here from my purchase of a electric die grinder part #44141.
Was itchy to get to porting on my 675 heads and drove 60 miles to nearest store, purchased tool w/extended warranty to use w/some long shank burrs..but once chucked up in the grinder, I have a tremendous "wobble" when coming up to speed. Initially thought perhaps the burr was bent but on closer observation it appears as if the collet is not "centering" the bit!!:wack: So, I ended up using a 20 year old IR (air) tire/tube buffer that I have. The long shank burrs work well & smooth in the air grinder, btw, that has a different "collet" that centers bit appropriately..
Was itchy to get to porting on my 675 heads and drove 60 miles to nearest store, purchased tool w/extended warranty to use w/some long shank burrs..but once chucked up in the grinder, I have a tremendous "wobble" when coming up to speed. Initially thought perhaps the burr was bent but on closer observation it appears as if the collet is not "centering" the bit!!:wack: So, I ended up using a 20 year old IR (air) tire/tube buffer that I have. The long shank burrs work well & smooth in the air grinder, btw, that has a different "collet" that centers bit appropriately..
