These inserts are great for easy and flexible work holding solutions. You could strategically place a few to hold down material in a jig or fixture, or install in a grid pattern to turn your wasteboard into a threaded table by installing these threaded inserts. Installation is easy, simply create a 9mm pilot hole, then thread the insert into the hole. Both the inch and metric come in packs of 100 inserts and include a 6mm hex key and 6mm hex driver for installation. The hex driver can be used with a cordless drill for quick installation.