About the Product A security wrench is a thin metal tool with an extra-long handle and a unique opening for the T-head security screw. It’s essential in the final step of locking and unlocking a frame on the wall using a security kit, with the long variant reaching six inches further behind the artwork than the regular-sized wrench. The security wrench makes installation quicker, prevents scuffed walls, and can be used as often as needed with all Picture Hang Solutions security hardware. Security kit installation tool for locking and unlocking large picture frames with the T-head screw Measures 10” long and 11/16” wide Notch measures 0.15 inches wide Compatible with all Picture Hang Solutions security hardware Instructions To lock a picture to the wall: Locate the T-head screw behind the frame. Hold the wrench with the slot positioned horizontally. Slide the wrench over the head of the T-head screw. Turn the screw clockwise. To unlock a picture from the wall: Locate the T-head screw behind the frame. Hold the wrench with the slot positioned horizontally. Slide the wrench over the head of the T-head screw. Turn the screw counterclockwise. Related content Everything You Need To Know About Security Kits