This Chain Cutter is an essential hand tool for cutting and adjusting the length of 420 428 520 525 528 530 roller chains. It is designed for use with 50cc, 70cc, 90cc, 110cc, 125cc ATVs, dirt bikes, GO Karts, Mini bikes, Scooters, Pit Bikes, Quads, and more. Constructed with high quality molybdenum steel, this chain cutter is both durable and reliable. Its ergonomic handle provides comfort and a firm grip for precise and effortless cutting.