Summary: I am a do it yourself guy. I have purchased several 4 1/2 grinders over the years. Just to have them last a months when used moderately. I have used the Hitachi grinder for 3 weeks now and it is still working great. By far the best grinder I have purchased. Again I only use a grinder about 1 month out of the year. So far so good.
Summary: This was my first portable grinder (always used my benchtop). Ended up sharpening every blade I had in my barn. Lawnmower, finish mower. hedge shears, etc. It was on sale at Lowes and well worth the price. I wouldn't be without again.
Summary: I have used the grinder for sharpening lawn mower blades and blades on my tractor powered rotary mower. It is much easier to use than my old bench grinder and I can get into tight spots. The grinder works great and was a good value.