Metabo HM core drill 21x55 mm Weldon shank 19 mm. This Metabo HM core drill is perfect for all drilling tasks with a diameter of 14 to 60 mm. It features a Weldon shank with a diameter of 19 mm. For larger core drills with a diameter of 70 mm and above, a Weldon shank with a diameter of 32 mm is required. To achieve precise results, the core drill should always be used in conjunction with the appropriate centering pin. This ensures secure guidance and prevents the drill from slipping. In addition to standard steels, this core drill is also excellent for higher alloyed steels, making it a versatile solution for various applications. Included accessories: centering pin.