The Kreg drilling guide makes it easy to create perfectly straight holes without using a drill press. You can get precisely positioned holes with just a hand drill. Featuring six hardened steel drill guides from 1/8 to 1/2 in that do the work of holding your drill in position for you. The Guide features an ergonomic design and Kreg GripMaxx material that ensure it stays in place as you use it, so your drill bit won't wander off your mark as you start the hole. The drilling guide also automatically centers on the edge of 3/4 in wide and 1/2 in wide boards and plywood, so you can drill holes that are perpendicular to the edge and perfectly centered. Use the drill guide for all kinds of tasks whether you need a hole for driving a screw, mounting hardware, helping create a dowel joint and much more.