tractor supply sells a porter cable for about 30 bucks.i always used makita and then it died.wanted to save a few bucks so decided to try one of these very happy with them.best grinder for the money.My latest $10 angle grinder is dying and I'd like to buy something with a bit more longevity. As usual I'm not sure where else to seek info, so you guys are stuck with my foolish questions.
I want to stay corded, and the usual 4.5", 5/8-11.
I see some grinders have low (6) amp ratings up towards 11 amps ratings, but oddly the RPM ratings don't always rise with the increase in amps.
Considering my current HF cheapy is 4.3 amp and did just ok, 6 amp is looking much better -- but is it good enough or do I need to start higher?
Other than safety concerns about not using lower RPM discs or brushes on a higher RPM grinder, what should I be looking for with amp/RPM ratings?
I'm also learning to avoid the HF "brown cloud" cutting discs in favor of much better ones.
Also, I noticed at least one grinder was variable speed.
Wouldn't that cause problems by running a cutting disc at too low speed?
When using a gas concrete saw for fire department training we were always taught to have the saw at full RPM before engaging the blade into the work.
Is it common to replace brushes in the better grinders?
Are the needed parts readily available and is it worth the cost of new parts --- or better to just buy multiple "disposable" cheapy grinders?
If a unit has a paddle switch, can they be locked on?
If not, I think I'd rather stick with a lockable switch for my convenience.
I'm open to any and all suggestions and experiences.
Anyone have an opinion on HF's newer lines of these tools with brand names that apparently aren't covered by their 20% coupons?