Great Planes Slot Machine Hinge Cutter FEATURES: Quickly Cuts Clean, Straight Perfect Hinge Slots Without Gouging Or Being Hindered By Hard Spots In The Wood INCLUDES: One Ready-To-Use Slot Machine Motorized Hinge Slotting Tool with blade for CA hinges already installed; One Instruction/Operation Sheet REQUIRES: Center Locator GPMR4005, To Find The Exact Center For Hinge Slot, Safety Goggles or Glasses; AC Household Outlet