Hi. Jeff from Oneida here. Here is some info relating to this, more at our web site. Link below.
Oneida communicated with Festool during product development of the Ultimate Dust Deputy. Festool evaluated the Dust Deputy and signed a written contract authorizing Oneida to sell the Ultimate Dust Deputy to their dealers and to direct customers. Festool said, “ we understand the dust deputy is customer driven”
The Ultimate Dust Deputy is designed to maintain a continuous anti-static loop from tool to the grounding of the vacuum's inlet when used with anti-static tool hoses. All of the Oneida Ultimate Dust Deputy components are made with electrically conductive or dissipative materials. In our testing (and 3rd party testing), the Ultimate Dust Deputy does not add any impedance to the loop and maintains the anti-static pathway to earth ground on the Vacuum inlet.
Link to More Information at Oneida's Web Site