Dremel Circle Cutter

[halcyonforever]

I need to cut some circles in my case ranging from fan size to 8'' diameter drains. Does anyone have any experience with the Dremel Circle Cutter attachment http://www.mytoolstore.com/dremel/678.html? What might be some of the limitations on what materials it would work for? (Looking at cutting through sheet metal right now)

[Liquid_Scope_99]

http://www.amazon.com/Dremel-561-Multipurpose-Cutting-Bit/dp/B00004UDIB
here is a picture of the bit that uses and description
Steel shank cutter
Cuts wood, plastic, fiberglass, drywall, laminate, aluminum
1/8" shank
Do not run in excess of 30,000 RPM Dremel Spiral Cutting Bits
Cuts Through All Types Of Wood & Wood Composites! Ideal for cutting wood, plastic, fiberglass, drywall, laminate, aluminum and vinyl siding in a variety of applications such as preparing an area for light fixtures or making cutouts in cabinets and paneling
it says it cuts aluminum would have to be really thin sheet metal if its like

I like using
http://www.dremel.com/en-us/AttachmentsAndAccessories/Pages/AttachmentsDetail.aspx?pid=EZ406
to cut metal but i know thats not a circle cutter but you can cut some pretty nice cuts with it . If you jsut needed one size liek for a fan hole you could go with a metal cutting hole saw .
You didnt ask all that though i dont think it would but you can use drill bits with that too if you had a metal cutting bit it might work i dont know . hope that helps

[halcyonforever]

Yeah the problem is it is steel and not real flimsy either. I may go ahead and get the circle cutter and see if/how it works. The problem with a hole saw is that two of the holes are HUGE and the hole bits get expensive for large sizes.

[Liquid_Scope_99]

yeah i was needing a 6 inch hole saw at one time the saw was like 40 and the arbor was 15 lol thats steep to me