This all size ratchet (1/4, 3/8) is the industry standard for industrial use. Almost indestructible. I highly recommend, mine has never let me down. I'm pretty sure it's close to the classic Plomb (original Proto brand material) from ten years ago and hasn't changed. Black Oxide is the preferred finish for industrial use. Chrome does not chip and tools are less slippery when oil or grease gets on them. Keep tools dirty, lubricated or oiled to prevent corrosion. After long-term use, the tool…