●tools are precise in workmanship reliable splicing ●Build-up & heat resistant teflon coating. Totally enclosed & lubricated. Industrial grade micro grain carbide blade.Solid hardened steel bodies ●Great for kitchen and bathroom doors, office cabinets, flooring tables, bedroom shelves, outdoor frames, walls and many of home DIY projects. ●The router bits are housed in plastic case for easy storage, easy to carry out homework ●Perfect choice of professionals and hobbyists ●[After sales worry free] Perfect service The support is not satisfied with the refund service. If you have other questions, please contact us, and we will give you the perfect solution as soon as possible.