The Pro-Graad Airway Safety Flange Kit consists of a set (pair) of 4” Airway Safety Flanges, including 2 pieces. The flanges are sized with a diameter of 4", center hole of 5/8", and 1/16” thick. The kit is designed for use with airway buffing wheels or buffing/polishing wheels with a 5/8" arbor hole and angle grinders with a 5/8" diameter shaft. The Airway Buff Safety Flange Kit serves a crucial purpose in enhancing polishing efficiency and safety. It is intended to securely fasten airway buffing wheels, ensuring a tight and effective grip during polishing tasks. This not only improves the quality of your polishing work but also enhances overall safety. Using the kit is straightforward. First, place one of the flanges on your angle grinder arbor collar, second add airway or polishing/buffing wheel, add second flange, then tighten with spindle nut to cinch the airway or buffing wheel securely. With these preparations, you can start your polishing tasks confidently and safely. The core function of these airway flanges lies in securely holding airway or buffing/polishing wheels. This function guarantees a reliable and slip-free grip, ensuring that your polishing work is not only efficient but also safe. When it comes to quality, the Airway Buff Safety Flange Kit stands out. Constructed from galvanized metal, these components exhibit exceptional resistance to corrosion, outstanding strength, and long-lasting durability. This quality ensures that the kit remains effective and reliable over extended periods of use.