610726 Oregon Speedcut Nano Sprocket Pro Spur HE325-7T Brazed for Stihl ST 180, 170, 171

610726 Oregon Speedcut Nano Sprocket Pro Spur HE325-7T Brazed for Stihl ST 180, 170, 171.  This 7-tooth, .325" Low Profile Pro Spur Sprocket delivers superior performance and value for professional chain saw users who is converting to the SpeedCut Nano Cutting System. The sprocket is rugged and dependable with excellent wear resistance.  Fits Stihl MS180, 170, 171. Pitch: .325" Low Profile (NEW), 7-tooth spur sprocket.  Simple and durable spur sprocket designed for battery-powered and compact lightweight gas chainsaws. Optimized for 80TXL SpeedCut Nano chain and bars.