http://www.spcalignment.com/instruct...65-INS_WEB.pdf

And a great slot cutting tutorial
http://api.viglink.com/api/click?for...oltinstall.pdf Only change I would suggest is using the 1" thin cut-off wafers for the dremel. These are sold in multi packs and you need about 5 or 6. This allows you to keep the dremel perpendicular to the part so you can easily access and see what you're doing. And you won't need a flex adapter. Start by running the cutoff wafer on some scrap steel to make it a bit smaller, this allows you to get in the slot and start cutting. Just take it slow and try test fitting the bolt, you don't want it spinning too easy w/ some slop, you want it to be a snug fit.