No experience, but I noticed that Harbor Freight has a 50% sale going on right now for the geared wrenches. $15 compared to the normal $30.

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2008 Porsche Boxster - X1 Arctic Silver Metallic, V9 Black Top, P77 Leather Sport Seats, 342 Heated Front Seats, AT Black Full Leather, 403 19" Carrera S Wheels, 475 Porsche Active Suspension Management (PASM), 435 Sport Steering Wheel, XSC Porsche Crest in Headrest, 490 Sound Package Plus, 551 Porsche Windstop (Deflector), 584 Storage Box