Here you go.
Ok I found mine. Its a 2.25 valve notcher. I used it to cut all 8 of my Kaase cobrajet heads. It has 11/32 pilot stem and is from isky.
I haven't measured it but its what they sent me for my heads. Now that I think about it my kaase cobra jet heads came with 2.20 intake valves. So maybe thats why it worked for me.For a 2.25" valve, wouldn't you want a piston valve relief notcher tool with a greater diameter than 2.25" to have area around the valve?