As an industrial researcher, I stumbled upon this hex bit during my quest for a reliable tool that can withstand my workload. As my tests showed this hex bit proved to be tough, allowing me to drill multiple holes with ease. The long 300mm length is especially helpful when drilling deeper holes, and it fits perfectly in my laser drill. The only con is that it does not come with a storage case, but that is a minor inconvenience .Overall, this hex bit is a great choice for industrial and…