Jeffer Automatic Tool Grinder JF-400 is developed to reduce labor time by allowing users to regrind their tools quickly and accurately, and is designed to ensure the highest grinding quality is achieved. JF-400, the Full carbide tool grinder,can be used to grind carbide cutter, router bits precisely. Not only this auto Tool Grinder is featured the advantages of simple operation and has reliable performance at an affordable price, but also it is the ideal solution for mass production manufacturers, medium-sized suppliers and hence best suited for small series production. Furthermore, Jeffer Machinery also provides an Optional attachment for this carbide tool grinder-Helical grinding attachment (manual grinding), which is obtained patent in Taiwan (Patent no. 346475).The finger jointer cutter is optional attachment, too.