Dremel670 Mini Saw Rotary Tool Attachment

This attachment fills a niche in my tool box. I wanted a rotary saw for cutting thin (1/8") acrylic and other plastic and wood. The saw cuts quickly through the material and leaves a smooth edge. It works much better than scoring and breaking the plastic using a scoring knife. For plastic it is much quicker than using a hacksaw or jeweler's saw and produces a straighter and smoother cut. For thin wood I find it easier and more efficient than using fine toothed hand saws for long, straight cuts. I have not had any trouble adjusting to using the blade guard or seeing the guide line and kerf through the clear plastic housing. It cuts a thin kerf. It is not a heavy duty cutting tool. Several reviews have down graded the attachment because it does not work well on hard and thick (1/4") material. This is useful information for setting it's upper limits, but it seems to clear to me that the tool was not made for these applications. I have an old Mikata cordless rotary saw and hacksaw, which I use on that type of material. This saw attachment is the lower (fine, light duty) end-member of a continuum of power saws in my tool box where the large circular and reciprocating saws are the upper (heavy duty, rough work) end-member. I see many reviews that downgrade an item because it did not perform well for a function it was not designed for. Buy and use the right tool for the job. This tool is light duty; that's evident from looking at the illustration. Clearly, it is not designed for use every day by a professional installing floors, etc. It's best use is for a hobbyist and for light duty cutting in thin material. By the way, the first package I received did not contain the drive adapter and the saw blade screw. I returned it to Amazon (they make returns easy) and they sent within two days a replacement. The replacement also did not have those two items. I called Dremel customer service and they were very courteous and helpful sending the drive adapter and screw at no cost, which I received in about three days of placing the call. Dremel said they would contact Amazon about the problem. If you have a problem, call Dremel customer service.

Great option for thin materials needing squared-cut edges. I like the safety guard, too, but it's no replacement for being smart (and a little paranoid--is a spinning blade, yo!).DEFINITELY perform the run-in instructions! It makes a big racket until it's run at speed for a few minutes.

It's a nifty little power saw, but there is a learning curve to figure out how to properly hold the handle to the work piece.. Accuracy is a problem in that it is hard to line the saw blade up with a mark line on the work piece. There is a clear plastic arrow leading the saw blade, but it's difficult to tell if the arrow is on the mark ( I used a red magic marker to shade the arrow, and a fine tip black marker right down the spine of the arrow to indicate its center.) A guide fence helps to keep the saw blade cutting in a straight line without tliting to either side ( I just used a piece of scrap that had a true edge as a guide fence). It cuts wood faster than a reciprocating blade tool. All and all; it's fun tool but you'll need to experiment with it to get the most out of it.

I had to cut out some paneling in a bathroom with several tight corners that would not accommodate any full sized cutting tool so I decided to try this out. At the price I didn't really expect much but didn't have any better ideas. The attachment fits easily once you realize that you are not too smart to need to glance at the instructions. I started tentatively at the lower speed and it consistently made ragged cuts and/or stalled. After I switched to high speed it began to slice easily through the 3/16" paneling. So far so good. I then began to take up old flooring and discovered that the glue down plastic tiles were covering two layers of linoleum and an additional square glued down tile application. Since I wanted to take out square sections and had no good way to cut the linoleum I decided to try this tool. Worked like a charm. I was taking out manageable sized sections within minutes. It easily cut down to the base concrete and the blade did not deform even though it sometimes hit the base concrete hard enough to spark. If fact, it still cuts wood smoothly. I haven't tried solid hardwood but suspect that would not go as well. I will probably try that out eventually.

It worked great for me, I used it to make a frame for a puzzle I had glued together, it's also a name brand and not some knock off.