Power Driver Compatible Tool Type Drill Press Power Drill Compatible Insert Type Hex Drive Threaded Inserts Knife Threaded Inserts Solid Threaded Inserts Compatible Internal Thread Size 5/8 In.-11 5/8 In.-18 M16 Compatible External Thread Size 7/8 In.-9 Material Steel Overall Length 11/16 in Product Type Drive Tool Compatible with Grainger Part Number 4ZB95 Compatible with Manufacturer Model Number 329-10 Features Install Slotted Inserts without Engaging the Internal Thread