Universal drill grinder: It is very easyto operate, even an unskilled,to get point of operation by means of its magic design. According to Some users investigation the cost to buy this machine can be paid off within one month by saving 3 or 4 working hrs a day through reducing waer of drill, grinding wheel, etc Taking into consideration of that a standard reground drill can improve working speed and quality , its economic benefit will be greater than above mentioned. Apart from being a special drill grinder it can also be used for grinding other cutters or crafts by changing kinds of grinding wheels or dressed forms of grinding wheels. Technical parameters: Dia.lf drill tl be ground: 3--32mm Dia.lf grinding wheel: 125mm Power voltage: 220-240v Motor power: 250W(1/3HP) Wheel spindle sqeeds:2800r/min Standard Accessory: Twist Drill Grinding Attachment 1pcs (pic.2) Grinding wheel(125X25X20) 1pcs Magnifier(5X) 1pcs Diamond Pen 1pcs Tools 3pcs :