Hey All, I have a new Haas TM1P vertical mill and a need to hold some flat 304 stainless parts at a 45° angle to mill a 90° slot in the sides. Last time I did this I mounted a small vise inside of my Kurt vise at the 45° and used that, but I was just using some small angle blocks to set the small vise angle, and I feel like there was some precision that was lost in the process. I also had an issue getting the small vise to tram in as it would change some as I tightened it in the large vise. I was looking around for a better solution and came across these cheap sine vises on everyone's favorite auction website. My question is if I buy one of these sine vises and use it in my Kurt vise would I have better control over the precision of the setup? Also are these types of vises even any good to mill out of? I have never used one, and have never actually held one. It looks like the top part with the jaws just rests on the bottom part and the piviot. It seems like in milling with any side load it would not have much rigidity. I like the idea of using gauge blocks to determine the angle exactly, but I don't want to end up with a setup that is not rigid enough to use in a mill.
Thanks
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