Features: Aluminum alloy material, strong and durable Precise positioning, precise calibration, precise alignment Adjust the scale according to the thickness of the plate Fast clamping, fast and firm clamping, improve drilling efficiency Increase the discharge hole, smooth chip removal, more labor - saving drilling Spec: Drill Bit size: 4*9*170mm Pocket hole Angle: 15 degrees Applicable plug diameter: 9.5mm Applicable plate thickness: 12-45mm Weight: Approx.842g/29.7oz Package list: 1 x base1 x main board1 x Clamping plate1 x Star screw1 x 9mm Step Drilling Bit2 x Hand screw1 x screwdriver bit2 x hex wrench3 x hex bolt1 x bolt3 x washer1 x 9mm spacing ring