PARK TOOL VC-1 VALVE CORE TOOL The VC-1 is a small, handy tool designed to remove and install Schrader and Presta valve cores and to remove and install Presta valve extenders with 5mm wrench flats. Features Note: Not all Presta valve cores are removable Related Articles: ROCKSHOX(R) REAR SHOCK SERVICE-MONARCH 4.2 TIRE AND TUBE REMOVAL AND INSTALLATION TUBELESS TIRE REMOVAL AND INSTALLATION Manufacturer's Part No: VC-1 UPC: 763477008572 | Park Tool Vc-1 Valve Core Tool Vc-1