Check the listing for details. B&S Indicator Clamp #7809. Condition: Used. Listed at 22.00 USD. The B&S Indicator Clamp #7809 is a collectible tool used in holding indicators and measuring tools. It is a reliable and durable accessory for precision machining tasks. Well built iron clamp opens up to to 2 3/4”, and the attached rod is 3/8” by about 5 1/2” long . See specifications in the catalog cut from an old Brown and Sharpe shop tool Manual. Fine working condition, no non-original markings. From an old tool and die shop.