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. Specification:Drill Bit size: 4*9*170mmPocket hole Angle: 15 degreesApplicable plug diameter: 9mmApplicable plate thickness: 12-45mmWeight: Approx.842g/29.7oz Package list:1 x base 1 x main board 1 x Clamping plate 1 x Star screw 1 x 9mm Step Drilling Bit 2 x Hand screw 1 x screwdriver bit 2 x hex wrench 3 x hex bolt 1 x bolt 3 x washer 1 x 9mm spacing ring Package List