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Posted by on January 12, 2007, 5:15 am
>
>wrote:
>
>>mm wrote:
>>> My Harbor Freight abrasive wheels have holes either too big or too
>>> small for my Harbor Freight 4" angle grinder.
>>>
>>> Was I supposed to get wheels with smaller or bigger holes or use an
>>> additional spacer, or should I try to return the tool to Harbor
>>> Freight?
>>>
>>> I have very little use for one, so I bought the cheapest angle grinder
>>> I could find, HF, and I bought their house brand set of grinder
>>> wheels, four kinds on a piece of cardboard for 10 dollars. Months ago,
>>> but I just got around to putting an abrasive wheel on the grinder.
>>> Isn't it supposed to fit neatly?
>>>
>>> The hole in the wheel is labeled 5/8" and is 5/8" (about 16mm)
>>>
>>> The shaft at the place where the wheel rests is only as thick as the
>>> threaded part but without the threads, at least 3 mm smaller than the
>>> hole. I can't position the wheel and tighten the nut so that it
>>> rotates true.
>>>
>>> Since one grinds with the edge sometimes, espcially with the wheels
>>> without the recessed hole, doesn't the wheel have to mount almost
>>> perfectly?:
>>>
>>> Potential partial fix 1: The outer diameter of the threaded parts is
>>> almost 5/8", maybe a sixteenth or 32nd less. I could put a spacer on
>>> the shaft so that the wheel would be at the threaded part.
>
>Still a possibility. Have to see if it still wobbles.
>>>
>>> Potential partial fix 2: There is a thick "washer" or spacer with a
>>> shoulder that would fit bigger holes, 7/8" or maybe just under. Do
>>> they have wheels with bigger holes?
>>>
>>> These potential fixes don't seem right to me.
>>
>>
>>Are you sure you got a 4" grinder and not a 4 1/2? Four inch wheels
>
>Yeah. It says it on the box and it says it on the instruction
>manual, and the 4" wheel fits within the wheel shroud, but 4 1/2
>wouldn't. The safety instructions (6 pages of them if you count the
>page on what extension cord to use) has very few lines that are
>specific to this device, but one says "Use ONLY 4" diameter Grinding
>Wheels (not included) having a 5/8" center mounting hole." That's
>funny.
>
>>usually have a 5/8" and 4 1/2 inch wheels have 7/8".
>
>It's funny because if I try one with a 5/8" hole, there are three
>parts to the shaft. The bottom part is bigger than 5/8 so it won't
>fit. The middle part is at least 3mm smaller and it can't be centered,
>and the end part IS 5/8ths, but only at the outermost part of the
>threads, so maybe I can use it after I enlarge the hole in a tbick
>washer to 5/8 (or maybe I can buy one) to lift the wheel out of the
>narrow middle part, but otoh on the outermost part, the spaces between
>the threads are so big that I think the wheel will still move some
>around and it may be impossible to tighten it with the wheel centered.
>
>
>It has an adapter to accept 7/8, and it came with one 7/8" wheel.
>
>> You can also get
>>cutoff wheels with 7/8" hole and a 5/8 x 7/8 adapter (looks like a washer)
>>that will fit either size shaft.
>>
>>I think a good pair of end nipper pliers would have worked better for you
>>for cutting off roofing nails.
>
>You might well be right, but I'll only learn what an angle grinder can
>do by using one. This was the only project I thought of that could
>use one, but I guess based on other tools in the past, subconsciously
>I want a tool because I know I'll find other uses for it.
>
>In fact, even consciously I"ve often said that no matter how few tools
>I have with me, they are enough, and no matter how many tools I have,
>I need them all.
>
>My friend or her employee uses hers for cutting locks off when people
>lose their keys. (at the ministorage she runs) (But I have no locks
>that need cutting.) I thought I could borrow hers overnight or over a
>Sunday when they are closed, but she insists her uncle the boss might
>want to use it at any moment and will get upset if it is not there.
>And I believe her. So I was going to ask him** to borrow it, when I
>saw this for sale at HF and bought it on impulse. **He's always
>polite to me and doesn't mind my sitting there talking to his niece
>when she's at work, but that doesn't mean he'll lend tools!
>
>>Bob
>
If you ever lock yourself out of your car you'll be glad you had one of these
tools. I had this happen and I just took my angle grinder and cut a hole thru
the sheet metal on my door until I was able to crawl thru that hole and get my
keys out of the ignition. Worked great.
William
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