APEX is one of the world's largest manufacturers of professional hand and power tools, and founded the Skadden brand in China in 1997 to meet the demand for mid-to-high-end tools in the domestic market. Skadden pioneered the "lifetime warranty" service model, which has become the service standard in the tool industry. In 2002, Shida Hand Tools ranked first in the Chinese market share, ranked first in the top ten in the quality evaluation of tool hardware in the field of domestic circulation, and in 2008 and 2012, Shida was also awarded the title of Shanghai Famous Trademark for two consecutive times. Skadden has also participated in the formulation of national standards for more than 10 categories such as sockets and wrenches, and its products have always maintained a professional-level level. Stard's openings and torx wrenches have been specially designed to improve the handle and jaws, and compared with traditional wrenches, the contact area with the hand during operation has been increased by five times, and the torque output has also been greatly increased, which is a hand tool brand recommended by the American Arthritis Foundation. A set of nine-piece fully polished dual-purpose wrenches is priced at more than 250 yuan. A set of professional nine-piece ball head lengthened Allen wrenches costs around 75 yuan for a lifetime warranty, while the home version is around 50 yuan.