features Creates pocket hole joints that are twice as strong as standard pocket-hole joints Works with 2x4 and 4x4 boards Hardened-steel drill guides Twist-apart dual drill guides GripMaxx™ non-slip surfaces Simple jig and drill-bit setup construction Durable, impact resistant construction capacity Materials 1 1/2" thick and thicker, presets at 1 1/2" and 3 1/2" compatibility Kreg Pocket-Hole Jig XL Drill Bit Kreg XL Pocket-Hole Screws includes (1) XL Pocket-Hole Jig (1) 1/2" (12mm) Diameter XL Stepped Drill Bit (1) 6" #3 XL Square Driver Bit (1) Easy-Set Stop Collar (1) Hex Wrench warranty Lifetime drill-guide warranty