Here is a cool bit! This one is a bit older, with the older style makers mark, likely from when the company was being transitioned from Ervin Quick, Â who built bits for over 60 years, to his son Mike Quick. Despite this one being older, its in very good used condition. Hard to find smaller size at 4 7/8″, the mouth tapers up into the an A framed port. Port measures 1 7/8″, 8″ shanks. Loose jaw style, with some movement at the shanks. Bit stabilizer is just a bit curved. Nice feel to this one.