"James Nipper" wrote in message
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What are some of the common uses for an angle grinder to the average
do-it-yourselfer?

Is is good for use to sharpen mower blades ?

there is probably a better tool for sharpening mower blades



I see they commonly have 4 1/4 inch and 7 inch sizes. Is there
any
common reason why one is generally better than the other ?

more detail can be accessed with a smaller diameter grinding wheel

a larger grinding wheel (on an angle grinder with higher amp rating/more
powerful motor) would cover more area faster than a smaller grinding wheel

those with higher amp ratings generally should be able to drive a larger
grinding wheel (higher amp rating = more powerful motor)

a 4" grinder has draws enough amps to run a 4" grinding wheel, but not
enough to run a 7" grinding wheel properly over time

a 7" grinder can run a 7" grinding wheel, or if it can be attached, a 4"
grinding wheel





Thanks for any comments or advice !!


--James--