Hobbypark Steel Metal 0-14mm Hole Puncher Reamer Black for RC Tools Car Body Shell Drills Adjustable hole saw size: 0-14mm Material: Stainless steel (Harder & Stronger) Apply to: RC Hobby Car Quadcopter Airplane Helicopter Boat Models Package include: Hole puncher reamer w/Sleeve Produced By HobbyPark ,Well made and durable,100% New