Metabo HM Core Drill 40x55 mm Weldon Shank 19 mm. This Metabo HM core drill, with a diameter of 40x55 mm and a Weldon shank of 19 mm, is ideal for various drilling tasks. With this core drill, you can create precise holes with a diameter of 14 - 60 mm. The core drill is specifically designed for use with a matching centering pin to enable easy and accurate drilling. Additionally, it is also suitable for drilling in higher alloyed steels. Accessories: Matching centering pin. With this Metabo HM core drill, you will receive a high-quality tool that will serve you well in your drilling tasks. Order now!.