Customer Rating: 
Summary: Smallest Hole You Can Make is 4.5 Inches with Pro Series Classic
Comment: I bought this because I needed to make a 3.5" hole. I have the Pro Series Classic rotozip which is basically the scs01 but with a straight edge on the tool base guide. (The package says it will work with all models of Rotozip and will make a hole 3.5 - 12 inches).
It's true that this tool adjusts to make a 3.5" hole. However when you spin it, the handle bumps against the tool base guide at this setting. The smallest hole you can make and still have it rotate freely is 4.5".
Customer Rating:
Summary: Missing Round Adapter
Comment: Missing Parts says it all for me, especially when the part count is low and the part is required for use with tool. The Round Adapter was missing from the sealed package. Unacceptable.
After receiving the part after a couple weeks wait, yes, it cuts holes. If you want accuracy, check the settings out on a scrap piece first. Be firm and gentle cutting the hole, use both hands. This is an 'okay' attachment for cutting circles in drywall or light materials - a little awkward for ceiling use, but low-end acceptable. If you're cutting heavier materials or making say port cutouts for speakers, use a Router and something along the lines of a Jasper Circle Jig, and cut on a bench or table.
I am not impressed with the construction. This easily, and for little cost, could have been made better. This is made much the same way you or I would have bodged one up in a pinch out of scrap c-channel. A scale marked in 1/4 or 1/8th inches, a better clamping and 'pointered' pivot pin assembly and cast aluminum or even pot metal knobs and adapters would give a little respectability to this attachment.
This is a '3' tool at best, if you receive it with all the parts.
Customer Rating:
Summary: Useful Rotozip accessory
Comment: I needed to cut a 9 1/2" circle in a woodworking project I was building out of 3/4" thick red oak. I don't own a bandsaw yet, so I can't make circle cuts like Norm does on New Yankee Workshop. So I decided to buy one of these to use with my Rotozip.A lot of people are complaining that the Rotozip can't go through plywood. I don't know if that's true, but it sure did a nice job cutting though oak. It didn't leave a perfectly smooth circle, since it's hard to keep the Rotozip perfectly verticle while making the cut. But it did a better job than I could have done by drawing a circle on the lumber then making a cut with a jigsaw. I was able to easily sand smooth any irregularities.
So if you have a Rotozip and you need to make **almost** perfect circles, this is a good way to go.
Customer Rating:
Summary: Handy in specific instances
Comment: This is a good solution for certain situations: - Cutting ceiling tile for hi-hat - Speaker cabinets - Portholes in boats - cutting fiberlass shower stalls for large valve handles
It is NOT good for:
- Cutting arcs in plywood - Tile - Thick wood (over 3/4")
I found that the center point drifted in these applications, and it was too hard to affix the center point to the material being cut.
Like the roto-zip, it's a tool of great usefulness in specific situations. I'd never get rid of my Jig-Saw, which picks up where this tool leaves off.
Customer Rating:
Summary: Easy to use and cuts great circles
Comment: Ok. So I bought the cutting attachment for my dad for Christmas and ever since he has been practically obsessed with making bird houses and cutting holes in things. This is a really great way to make consistant and easy circles with your Rotozip. I had a chance to use the circle cutting attachment on a project and it was so nice and easy. Just imagine no more using a compass to draw out a circle and then attempting to cut it out freehand--with to rotozip circle attachment you get perfect circles every time. It is so nice and easy for people of all different levels of skill. I recommend it!!
