General description Made of durable tungsten carbide, this 16 Piece 15-35mm Shaping Drill Bit Set is designed for woodworking and other materials requiring precise perforations. The bits are heat treated for high hardness and heat resistance, ensuring they maintain their shape and performance even under high temperatures. This set is ideal for various applications, including industrial hinge installation, wood processing, model making, and drawer installation. Technical specifications Material: Tungsten steel Sizes: 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 28mm, 30mm, 32mm, 35mm Usage Perfect for wood and wood products, plastic, plywood, and other materials that require delicate perforations. Suitable for industrial hinge installation, wood processing, model making, spherical doors, and drawer installation. Other information Each bit comes in its own plastic box for convenient storage.