This item measures approximately 1 3/4” x 1” x 3/8” not including the bolt. There appears to be a logo stamped on it along with some numbers… “953”, “2” and DB 105-8. I am not sure what this tool is used for other then it is used with a lathe. Please use the pictures to help you understand the condition of this tool. We are selling it as is as found. Questions? Thank you for looking!