ITEM NAME:16 Pieces Air Compressor Die Grinder Grinding Polish Stone Kit 1/4 Air Grin Q4U7 16 Pieces Air Compressor Die Grinder Grinding Polish Stone Kit 1/4 Air Grin Q4U7 Package weight:1058g This pneumatic mold grinder is compact and can be used in a variety of molds and hardware products.Quick and easy operation Small size,light weight,fast speed and low noise. The air consumption is small,the concentricity is high,the operation is simple,fast and convenient. Applicable to all kinds of molds,hardware,glass,stone,crafts,jewelry,circuit board manufacturing,etc.Need blank trimming,cutting,grinding,finishing operations.Excellent quality and practicality,a complete set of polishing and grinding tools. Color:picture color Material:metal,plastic Package Contents: 1PCS * pneumatic polishing machine 5PCS * 6mm grinding head 5PCS * 3mm grinding head 2PCS * wrench 1PCS * intake connector 1PCS * chuck