Kreg K3SP K3 Pocket Hole Jig Standard Pack Allows users to easily position screws in from  to 1-1/2 inches in 1/8-inch increments; super-fast adjustement Patented three drill guide fixed spacing puts pocket holes exactly where you need them for narrow, wide, and widest stock Chip extraction holes in back of upright get chips out of the drill bit flutes and out of your way; Premium Face Clamp is the perfect clamp for drilling, assembly, and more Jig body made of rugged, glass filled nylon composites; lifetime warranty on drill guides