I recently purchased this vise,a Yost ADI-6 for my main shop use. For those that have not researched the many brands and types of vises available nowadays,finding a sturdy,well designed and properly made vise is time consuming (and that's why the majority of buyers 'give up' and purchase something from Lowe's,Menard's,Bob's Mart,etc.,etc.,etc.).
The Yost brand is family owned and their solitary product are vises of all types and materials for both industry,shop,homeowner uses. The vise that I selected impressed me with the fit,design,operation and it's finished appearance (sharp looking,worthy of being in one of those Bob Vila garages where nothing gets used,only viewed....). Yost vises are manufactured both in Taiwan and the USA;this particular model in Taiwan-nothing new,as virtually every major US name vise utilizes foreign sources(pronounced Chinka) for their lower quality line of products-and,most of them will admit to that.
Being used to the more typical style of robust design found in most of the better imported vises,the ADI design took a while to get used to-but because the material used is 130,000 psi ductile iron,the design can be much less robust than the typical types that use 30,000 psi cast iron and have to rely on sheer mass for strength.
At $160,this is very inexpensive vise for it's apparent quality,typically US made vise prices start at $400 and go to $1200+.We'll see....