We make all this stuff right here in our own production CNC machine shop.  I founded this shop in 1980 ... we know machining and folks tell us it shows.  We now have 27 CNC machines and a team that knows how to make them dance.  Our strong point is our guarantee - "If you ain't happy, then we ain't happy".   This "Lifetime" guarantee means as long as I'm alive you can return anything for a full refund or exchange. :-)