High-performance alloy steel. Case: High density polythene (HDPE). Matte finish. Weight: 0.2 Pounds. Manufacturer: Bahco. This Bahco file is designed for efficient material removal with its second cut. It is made from high-performance alloy steel for durability and features a matte finish. The file comes in a high-density polythene (HDPE) case and weighs 0.2 pounds.