This compact mill grinder is multifunctional design, 90 elbow suitable for engraving, grinding, cutting, polishing, drilling, sewing use. 3mm chuck suitable for various kinds of bit with 3mm shank, which can satisfied with different yourdemands. High compatibility, compatible with polishing bit, grinding bit, sanding paper, carving bit, cleaning brush and etc.. Multi-purpose, which can be adapted to milling machine, electric drill soft shaft, electrical grinding machine and etc.. Features: Compact size, light and portable, easy to take and carry around with you. Multifunctional design, 90 elbow suitable for engraving, grinding, cutting, polishing, drilling, sewing use. Bolt interface design and comes with two wrenches, easy disassembling and assembling. 3mm chuck suitable for various kinds of bit with 3mm shank, which can satisfied with different yourdemands. High compatibility, compatible with polishing bit, grinding bit, sanding paper, carving bit, cleaning brush and etc.. Multi-purpose, which can be adapted to milling machine, electric drill soft shaft, electrical grinding machine and etc.. Specifications: Name: Electric Grinding Machine Material: metal Color: black, gold (optional) Item size: 155 * 24mm / 6.10 * 0.94in Package size: 183 * 89 * 47mm / 7.20 * 3.50 * 1.85in Package weight: 270g / 9.52ounce Packing List: 1 * Electric Grinding Machine 1 * 30mm Rubber Disc 1 * 16mm Aluminum Disc 1 * 25mm Aluminum Disc 1 * 30mm Aluminum Disc 1 * 3mm Chuck 1 * Screw 2 * Wrench