Re: Ibanez Edge Intonation Tool
The OFR tool doesn't fit right at all, but it will work of you don't mind it scratching up the cosmo on the butt of your trem.
The tool holds the saddle in place with full string tension and allows you to move the saddle precisely at pitch. It can be handy on trems where the fine tuner is exposed with the tool on, [Edge, Edge Zero, etc.] but the Lo Pro tool is a pain as it covers the fine tuners so you can't use them, and IMO the fine tuners are more important in setting intonation than having a tool hold the saddle, especially when you can detune by clamping the bar on the body at full dive and have everything retuned faster than you can with the tool on.