What I meant was, the time and effort you put into it along with the cost of the item would ballpark around $35.
When I made my improved cutaway- see homebrew pick set topic- I needed safety glasses and a dustmask because I had to see up close, real close what I was doing... and the 426 disk survived.
Due to the thickness of the mortice cylinder the dremel jammed several times, this stressed out the bearing so basically the tool is on it's last legs or well nigh shot.
Obviously best to have a bandsaw or milling machine or other metal shop-type saw.
#426 lable reads: Reinforced cutoff wheels- 5 per pack.