Round Steel Burs Slow Speed RA - Ongard are dental burs that are used in slow-speed handpieces for various dental procedures such as cavity preparation, polishing, and finishing. The RA in the name stands for Right Angle, which means that the bur has a 90-degree angle between the shank and the working end. The burs are made of steel and have a round shape, which allows them to access hard-to-reach areas and provide precise shaping and contouring of teeth. The short shank of the bur is designed to fit into the slow-speed handpiece, which operates at a lower speed than high-speed handpieces, allowing for more control and precision during dental procedures. These burs are commonly used in restorative dentistry and are available in a range of sizes to accommodate different procedures and tooth surfaces. They are also disposable and single-use, which helps prevent the spread of infection and ensures patient safety.