Using a KeyholeSlot Router Bit for Mounting Wall Hangings

Keyhole slot - error keyhole slot Quickly & easily mark fastener mounting locations for frames, shelving, power strips, electronic equipment & more with the Keyhole Companion The patented keyhole slot plug Buy Saker Keyhole Slot Mark Tool Screw Hole Locators Drilling Key-Hole Companion Tools Fastener Location For Wall Cabinet Hangers at Aliexpress for

keyhole slot bit Steel keyhole slot hanger with 2 screws Keyhole slot allows a screw head protruding from a wall to lock securely onto the project piece you are hanging