
OMG, the Rockewell SoniCrafter is great. I was looking for a corded oscillating tool and looked at the Fein Multitasker and blades, but it is just way too expensive to purchase for my needs. So I bought the Dremel and the Rockwell to compare side by side...
The $100 Dremel is lighter and a bit smaller but the buzz the motor makes compared to the Rockwell motor [a little bit heavier and slightly bigger] which humms smoothly is like comparing a Vespa scooter to a Victory street bike.
Since the basic Rockwell is only $20 more than the Dremel and the extra blades are about the same price, there was no question about going for the quality/durability of a Rockwell.
The only convenience problem that I can foresee is getting replacement blades:
Dremel is carried by big box hardware stores; hobbyists who do crafts on the spur of the moment and do not need to rip open walls, will appreciate the around-the-corner convenience.
Rockwell is carried by speciality woodworking stores or the internet; the Home Proj. kind of guys have to plan ahead before ripping into a wall for remodeling. So ordering parts in advance should be a no brainer.
I also really liked the Rockwell case, it is created with niches and screw-downs to hold lots of blades/attachments in place.
I looked at the Bosch 12v battery operated version, and that would have been a good choice but I do not want to have numerous 18v tool systems and chargers for the various power hand tools that I use. I read that the Bosch delivers 20 min of battery power and I might need more time than that between charges.
All four tools mentioned above have variable speeds pretty much the same: 10,000 - 21,000 opm. The Bosch details that I read boasted of 5,000 - 20,000 opm, but I do not know if I need to go that slow. If I did I would have researched more into the rare Praxon version of oscillating tool, which is reportedly underpowered and equivalent to size and weight of the Dremel.
Get more detail about Rockwell RK5101K Sonicrafter Tool Kit, 37-Piece.