if you have a die grinder you can just buy the head. I always did the drill and dedicated grinding wheel but it made a big difference in the arc using the tungsten grinder. The diamond wheel gives a finer grind and you get a more focused arc. I picked up the whole kit since I already had a bunch of the 12V Milwaukee tools. I am also lazy and is convienant to have next to the welder instead of having to drag out a couple tools to sharpen. I find myself hitting it before I weld anything now since it is so fast.
I have no doubt that it's amazing, but by the time I get it to me it's $600. Even just buying the head is expensive because currency exchange and UPS shipping.
Amazon.ca has a knockoff like what Talon2006 posted and the Homeless Despot has a promo for the Milwaukee grindy thing being free with a charger/battery kit, so I went ahead and ordered those things. Hopefully the knockoff does a decent enough job. If it doesn't I'm only really our $100 because I can use the other stuff.
Amazon wouldn't send you another one?
They are out of stock themselves so it's now a third party vendor with 3X the price and a retarded lead time. I might be able to get them to buy one for me from the third party vendor, I didn't accept a refund yet (what they want to do), but even then it would be months away. I'm going to call back and see if they intend to stock it again and go from there.
It's hard for me to deal with them because I need a specific delivery window or things get thrown on my porch when I'm not in town, and then either go missing or I have to keep calling in favours to get them picked up.
this one a 4-1/2" angle grinder that just barely works and sometimes needs to be kickstarted. works absolute tits, super cheap, long wear life
diamond wheel, drilled out arbor hole to fit onto my m18 grinder. Works absolutely great