K3 Standard Pack Kreg Jig, All the thickness flexibility you need… 1/8” incremental settings for materials from 1/2” to 1-1/2” thick. Patented three drill guide fixed spacing puts pocket holes exactly where you need them for narrow, wide, and widest stock. Solid metal drill guide insert assures a clean, accurate pocket hole. Hardened steel drill guides support the drill bit and feature a LIFETIME WARRANTY! Premium Face Clamp is the perfect clamp for drilling, assembly, and more. Jig body made of rugged, glass filled nylon composites. Kreg Tool