Install the 35mm hole opener, adjust the drilling depth, normally 12-13mm, and then lock the limit ring.Adjust the fixed size of the quick-clamp black pressure block (Note: The tool can adjust the size of the fixed board to 15-25mm)The hole puncher moves to the position where the board is marked and punched, and the quick clamp is locked.Tighten the handle of the with the electric drill, press down the hole at a constant speed to a depth of 12-13mm, and then punch 2mm screw holes on the left and right sides.35mm hole to edge distance of 5mm, suitable for most common hingescolor:As shownMaterial:MetalPackage Contents:1 x Hinged Only the above package content, other are not included.Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed is +/- 1-3cm."