Kreg, Pocket Hole Jig 320, Features Two Drill Guides, A Removable Spacer & Thickness Stops For 1/2", 3/4" & 1-1/2", Material Gives The Versatility Needed To Build With Boards & Plywood Found In Home Centers, Material Thickness Gauge & Easy Set Drill Bit Make Setup Simple, Clamp Adapter & Anti Slip Base Hold The Jig Precisely In Position, All Components Store In A Durable, Compact Case That Even Has Space To Store Pocket-Hole Screws, 40 Sample Screws Included.