Versatile 2 Piece Set: Includes two different sized limiter gauges ( 188mm and 126mm) to accommodate various chain types Eliminates the need for multiple tools, making it ideal for users with different chainsaw models Safe Grinding Assistance: Integrated depth gauge ensures proper filing distance during chain sharpening, over filing Helps extend chainsaw lifespans while maintaining cutting precisions and operational User Friendly Operations: Features an ergonomic design for easy installation and operations without complicated steps Suitable for both home maintenance and professional repair scenarios, simplifying chain tasks Chain Measurement: This professional chain limiter gauge set features high precisions steel construction for accurate depth measurement and chain positioning, solving traditional tool wear issues Ideal for chainsaw maintenance by technicians and DIYers Steel Construction: Made from premium resistant steel with precisions grinding finish, these gauges wear resistance compared to ordinary materials Perfect for long term outdoor or humid environment use, Manufacturer: Qusinfc