Description: High quality aluminum alloy 6061, anodizing surface, good abrasion resistance, durable to use. Easy to use and install, suitable for joints wood boards of of different thickness less than 45mm. Sharp knife head with perfect performance, can work smoothly without burr, helps to improve work efficiency. This jig creates flush, corner and angle pocket hole joints for leg-and-rail connections, building face frame cabinets and fastening picture frames, exceptionally handy tool collection. This set includes 1x pocket hole jig base, 1 x hole puncher, 1 x 9.5mm drill bit (with stop ring), 1x screwdriver and 1 x Allen wrench for convenient use, for use with pocket hole joinery. Specification: Material: Aluminum alloy Surface Treatment: Anodized Color: Blue Pocket Hole Jig Size: Approx. 80x49mm / 3.15x1.9inches Base Size: Approx. 270x88x62mm / 10.6x3.4x2.4inches Drill Bit Diameter 9.5mm/ 0.37 inches How to Use: 1. Adjust the thichness of pocket hole jig 2. Insert the drill bit into the steel sleeve, raise 3mm after touching the quick bottom adjustment, and then tighten the limit ring 3. Start the drill reaches a certain speed 1500+ 4. Advanced to slow down, and other fine tip drill into the half or full-forward, then feed can accelerate Package Includes: 1 Piece Pocket Hole Jig 1 Piece Pocket Hole Jig Base 1 Piece 9.5mm Drill Bit (with Stop Ring) 1 Piece Screwdriver 1 Piece Allen Wrench