Product Name: Holsu iron kit 12 pieces of Total name in English: Total TACSH1121 BI-Metal Hole Saw Set Country of origin: China manufacturer: Total-Total Product Description: contains 12 pieces designed to holes holes in a variety of materials including wood, metal, plastic, fiberglass and cement made of dual metal materials (BI-Metal), which is characterized by durability and hardness, allowing effective cutting and long-term tolerance. Used to create accurate and clean holes to install handles, locks, taps, electrical, lighting and more. It features a multi -use design that provides a variety of holes to suit your specific needs. Provides clean and smooth holes without deformation or tearing of pious materials. It is ideal for use in manual work, household installations and industrial works. Technical specifications: sizes 20mm, 22mm, 25mm, 29mm, 32mm, 35mm, 38mm, 44mm, 48mm, 50mm. Model number tacsh1121