Now, if you want your rotary grinder to be portable, then you will choose a battery operated type. These tools can go anywhere, from the basement to the attic to the garage to the field. But, if you're looking for a Dremel grinder that can deliver more power, you'll want to buy a corded one that plugs into a household outlet instead. An electric rotary tool can have a one amp motor that can put out a speed of anywhere between eight and thirty thousand revolutions per minute (RPM). Or, you can go a step up and opt for a larger model. How about two and a half amps of power that can reach speeds of over twenty six thousand RPM's? That would be powerful enough to do about any job you could come up with!
Just like many other power tools, Dremel grinder is often sold in kits. Manufacturers bundle together the actual tool, a handful of commonly used heads, maybe a battery charger, and a case to store it all in. The good thing about a kit, is, that the bigger it is, the more economic it usually is. If you buy a large, say, one hundred piece kit, it should have everything you need to do just about any job. Make sure, that whatever brand and model of Dremel grinder you choose, that it is able to accept generic heads.