Listing is for one used AMMCO boring bar with clamps and bit holder. Bit holder is missing screw. Locking screws for bit holder are free. There are some debris under bit holder. All items have rust, pitting, and dings. See photos for more details or anything we may have missed in our description. Any devices showing measurement, testing, or demonstration of item; along with backdrops, stands, or any other items used to assist in photography are not included unless specifically stated above. Thank you for your interest and please reach out with any questions or concerns.