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Electric Angle Grinders
Are electric angle grinders any good? I need something to cut the crappy pin hitch off a dump trailer to convert it to a ball hitch and don't have an adequate compressor for air tools.
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Electric Angle Grinders
Given that job myself, I think I'd use a reciprocating saw first, then dress up the rough edges with a grinder.
But yeah, they're a good investment. I have a 4.5 inch, a 7 inch, and a 9 inch. I'm trying to sell the 9" though, 18 pounds is too much grinder for me to lift. I find the 7" most useful, pretty much just using the 4.5" in places where the 7" doesn't fit.
If you're a casual user like me, the Chicago Electric brand that Harbor Freight sells are perfectly suitable (and priced well too).
//greg//
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I built a utility trailer once and used nothing but a 4" angle grinder to cut all the metal. It takes time but does a good job. Also they are very handy for cleaning with a wire brush or sanding disc.
I'd recommend getting a 4-1/2" one, it can be hard to find discs for the 4" ones.
Good luck,
Bill
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Ken, I have no problem cutting metal with mine, just get cutting blades and not grinding blades. Cutting blades are made just for that, thin and buy a lot. They will cut metal that will take the teeth off of a saw blade. They do produce a lot of sparks so can make a mess, danger if gasoline and wear eye protection. kt
Best thing I found to sharpen lawnmower blades with also.
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When I bought my 4.5" a couple decades back, it was a serious mechanics tool. Now they're more like a common hand tool. When my switch failed, I bought a new grinder for less than the cost of a replacement switch.
With the right disk, you can cut metal or masonry, grind, flap-grind, sand, whatnot. To show how common they are now, there's a new holder that converts the grinder into a small chop saw (just came out in the Canadian Tire Store catalogue, so might not be widely available). They spin fast, so hold on tight and wear protection.
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Thanks, guys, I'll get one and give it a try. A reciprocating saw would be just the ticket for cutting through the square tube tongue but I don't want to shorten it any. The pin hitch there now is welded top and bottom to the square tube and I need to cut through the welds without doing too much damage to the tube, then grind it flat enough that a new ball hitch coupler can slide on.
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I'm on about my third or fourth 4.5 inch and also have a 7 inch. The first two or three small onmes were Mennards type brand that selfdestructed pretty quick. I'd have to go look but I think both the small and big ones I have now are Millwauke. I only use the big one for the real big stuff, as someone else said it takes a pretty good man, or lady to wrestle it aroiund. Frank.
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Greg, before you get rid of that 9"er try putting a wire wheel on it and using it on some rusty steel.
I'd take a big grinder with a steel wire wheel on it over a sand-blaster any day!!!
I've got one that's never had anything else but a wire wheel on it from new. It cleans up slag from the stick welder and leaves a really nice finish to boot.
Best of luck.
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Excellent suggestion, I never thought of using it that way. I've got a pair of wire wheels mounted on a bench grinder, but that way I could take the wire wheel to the job - instead of the other way around.
//greg//
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I bought one of those $15 ones once and it lasted about 10 minutes. My 4" Makita has hundreds of hours on it; for years it was my only way to cut, grind and clean for welding projects.
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