My analysis of this Industrial and Scientific product showed that the tool holder was poorly constructed with rough edges that caused scratches on my machine. The only positive is that it did fit the designated tool. Unfortunately the cons outweigh the pros as this product has caused more harm than good. I do not recommend purchasing this tool holder..
Each unit is individually oiled and boxed. The threads were rough but a little tape to remove the edge with anti-seize for a minute before installing and they worked fine. I'm not sure if they're durable, but they come in Haas, so it's not like they're holding giant tools or being put under a lot of pressure like a real machine.