EST Tools Co., Ltd. researches, develops, manufactures, and sells cutting tools and precision spline gauges in China and internationally. The company offers round and flat broaches; forming racks; forming roll and spline forming dies; spline and variable gauges, master gears; and hobs and shaper cutters. It also offers drilling and milling cutters; and core drills and hole saws. The company's products are used in aerospace, auto parts, construction machinery, power station equipment, precision machinery, ships, steel structures construction, wind power, defense equipment, and other fields. EST Tools Co., Ltd. was founded in 1997 and is based in Jiaxing, China.