Triton TW7PHJ Pocket-Hole Jig 7pceHardened steel drill guide with 2 drill fixed spacing. Removable drill guide for benchtop or mobile use. 3mm (1 8") incremental settings for 12mm (1 2") to 38mm (1 1 2") thick material. Kit includes Triton Pocket Hole Jig, Step Drill Bit, Collar and Key, screws, pine plugs, Square Drive Bit 152mm (6") and instruction sheet. Features Hardened steel drill guides Removable drill guide for benchtop or mobile use For use with 12mm (1 2") to 38mm (1 1 2")