The Kreg Deck Jig helps you get the deck you want, without any unsightly exposed nails or screws Concealed-fastener system for installing deck boards Easy-grip handle gives you a secure hold and complete control over each and every joint Hardened-steel guides keep the stepped drill bit and driver bit at the precise, optimal angle Three lifetime-warranted, hardened-steel drill guides let you install deck boards in a variety of hard-to-reach areas Handy spacer rings ensure accurate deck board spacing for proper drainage and longer deck life.