The TERRAX Snelstaal HSS Weldon 75 Core Drill Set is a comprehensive core drilling kit designed for professional metalworking applications. This 75-piece set includes high-performance high-speed steel (HSS) core drills that offer improved cutting performance and extended tool life compared to conventional tool steel. The set features six core drills with 3/4 Weldon shanks for diameters ranging from 12.0 mm to 22.0 mm, specifically in sizes 12 mm, 14 mm, 16 mm, 18 mm, 20 mm, and 22 mm. Each drill is equipped with a 3/4 inch (19 mm) Weldon shank, ensuring a secure connection and efficient power transfer during operation. The set also includes a 6.35 mm x 77.0 mm ejector pin that supports a drilling depth of 30.0 mm. These core drills are designed for machining various materials, including steel up to 900 N/mm² tensile strength, aluminum, brass, plastics, bronze, and cast iron. The HSS material construction allows for high cutting speeds and durability, making this set suitable for drilling T-beams, large plates, and steel castings. All components are organized in a convenient storage box for easy transport and visibility. The brown box provides a professional appearance and practical handling. This core drill set represents a reliable solution for metalworking professionals who require precision drilling capabilities across multiple material types.