The AndyMark 24T Plastic HTD Pulley 0.500in. Hex is designed for use with 5 mm pitch HTD timing belts. This pulley is compatible with a 9mm wide belt and can be adapted for a 15mm wide belt or dual 9mm belts by adding a pulley extension. Constructed from durable polycarbonate, it features a 24-tooth design and a 0.500-inch hex bore, making it suitable for various mechanical applications. The pulley is engineered to facilitate efficient power transmission in robotic assemblies.