Valgro Engineers Private Limited manufactures Easy to Use Still-Jog Sleeves. Valgro Engineers Private Limited is an ISO 9001:2000 and TUV SUD German certified company. Easy to Use Still-Jog Sleeves are constructed of sharp, even bonded mineral, coated on a strong drill cloth backing and spirally wound over a cloth inner liner. This forms an abrasives-surfaced cylinder that can rotate smoothly in either direction. This product provides a fast, continuous cut and long life performance so as to get lower costs per work piece. Valgro Engineers Private Limited offered Easy to Use Still-Jog Sleeves are supplied with rubber slotted expander wheels and are available in a wide variety of size for use with still jog sleeves and belts. Still-Jog Sleeves is used in case of finishing curved or contoured areas and other hard -to-reach areas. It helps in removing parting lines, imperfection and burrs on all surfaces.