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 1/4 in-20 M6 Compatible External Thread Size Not Applicable Material Steel Overall Length 33/64 in Product Type Drive Tool Compatible with Manufacturer Model Number 801420-13 801420-20 901420-13 901420-20 901420-25 Features Install Slotted Inserts without Engaging the Internal Thread