Feature: All-copper durable motor with strong power and stable operation at high intensity. Six gears infinitely variable speed switch, convenient to use in various situations, suitable for all kinds of grinding, engraving, polishing, easy to use, more comprehensive. The Extension handle adopts ergonomic design, easy to hold, suitable for high precision operation. Durable and reliable-small size, light weight, easy to carry, comfortable grip, better control when drilling, easy to use. All kinds of grinding head accessories are complete, suitable for various use needs, reasonable set design boxing, easy to carry. The external carbon brush design makes it easy to replace the carbon brush, which is safer to use and extends the life of the machine. The embedded switch design prevents accidentally touching the desktop when opening the desktop. Scope of use: polishing, grinding, cutting, drilling, carving, wood carving, jade carving, etc. Specification: Chuck diameter: 0.5-3.2mm Rated power: 180W No-load value: 0-33000r / min Rated voltage: 220V Rated frequency: 50 / 60Hz Color: Blue as picture show Length: 232mm( 9") Width: 48mm( 2") Scope of use: polishing, grinding, cutting, drilling, carving, wood carving, jade carving, etc. Package Include: 160 Pc Electric grinding accessories 1 x Electric grinder 1 x Transparent plastic box