The NEW MARTIN 80SDS13H SPROCKET GEAR is a durable and reliable gear designed by the reputable brand Martin. With 13 teeth and a 2-1/8" inner diameter, this sprocket gear is suitable for various industrial and business applications. The 4-3/4" outer diameter ensures a secure fit and smooth operation, making it a valuable component for machinery and equipment. The Martin 80SDS13H sprocket gear is a quality product that can be trusted for accuracy and performance.