This tune-up kit includes the essential internal parts needed to keep a pneumatic grinder or sander operating smoothly and reliably. It provides key wear components such as seals, felts, O-rings, springs, motor blades, and a gasket to help restore proper function and maintain consistent performance over time. Designed for routine maintena...Read morence of select compact air tools, this genuine kit offers a practical, cost-effective way to refresh the tool and extend its service life through regular use.