These are our Flush Mount Tonal Clips. These cannot be surface mounted and will require a 7/8-1" Forstner bit to drill the center to allow the t-locks to rotate and a 2" Forstner bit to drill out the hole for the mount to sit in.
This also requires the shelf/mounting area to be at least 3/4" thick and to be solid wood.
We are not affiliated or endorsed by Tonal.