Kreg Jig K4 Master System and Pocket-Hole Screw Kit in 5 Sizes DRILL GUIDE: Removable drill guide for use with bench top and portable bases; patented 3-hole drill guide allows you to make perfectly placed pocket-holes DUST: Dust collection shroud helps reduce wood chips RECESS: Large clamping recess allows for many different styles of clamps to secure the jig to the workbench SETTINGS: 1/8-inch incremental settings for materials from 1/2-inch to 1-1/2-inch thick BUNDLE INCLUDES: Pocket-Hole Screw Kit in 5 Sizes