Universal Piston Ring Cutting Machine Portable Piston Ring Gap Filer Tool for Filing Ring Gaps Rotate Gapping Grinder Ring File This portable piston ring cutting machine is designed to accurately file and adjust piston ring gaps.It allows for precise ring gap sizing by rotating the grinding mechanism around the ring circumference.The tool supports various ring diameters and can be used for both intake and exhaust rings.Its compact design enables easy handling and in different workshop environments.The device features a stable base and secure ring clamping system to consistent filing results.Suitable for use with standard piston ring materials, it aids in achieving proper ring fit during engine assembly or repair. Compatibility Notice: This is an aftermarket product.Mention of brands is for fitment identification only.