Carbide steel body + high speed steel (HSS) drill. Durable, safe, quick and clean drilling
[Features] Precise drilling is possible with two balanced blades. Can be used in circular shapes like a compass
Applications: Ideal for drilling down lights, ducts, wood, pipes, ceiling materials (gypsum board, plywood), thin boards, etc
How to Use: Attach to an electric screwdriver and use it. Align the cutter to the size of the circle you want to cut according to the scale and secure the cutter with the included hex wrench. Comes with 2 types of center drills, so it can be used with either thick or thin boards.