The Metabo 623934000 Double-Arbor Key is a specially designed component for use with angle grinders. It is made from heavy duty steel and features dual arbors, allowing it to fit different types of grinders. The key is specifically designed to fit Metabo brand angle grinders, helping users easily and quickly change accessories like grinders, blades, and more. This part is characterized by its durable construction, which provides long-lasting strength and reliability, allowing it to take on even the toughest grinding tasks.