The Tecomec JOLLYEvo Grinder offers reliable chain sharpening with its 3 installation types, LED light, and well-visible scale. The grinder also features a frontal arm setting handle, self-centring vice/automatic vice, and sporting slide for easy chain saw grinding. With its provided 1/4, .325, 3/8, and .404 grinding wheels and depth gauge dressing brick, this grinder will help you sharpen your chain saw quickly and accurately.