It won't mount it onto masonry, the idea is an extension of using grab adhesive, which has already been mentioned a couple of times.
The template is for the forstner bit, tack the template to the wall with the pins (pictured) drill out to 10mm (plasterboard thickness) The hole saw is for...
There's another way, that hasn't been mentioned yet.
30mm Aldi Forstner bit (or cheap disposable one)
35mm Holesaw
Guide for drilling plaster
Offcut of ply for plugging
6mm dowel (fits the holesaw drill bit size) to assist inserting ply plug
Construction adhesive to fix plywood plug
Filler to...
Let's face it, whether it's a tool wall, caddy/toolbox, drawers or whatever system we devise, the latest New Tool, or found-in-the-back-of-a-drawer item, or car-boot find or whatever, will always require a modification to our workshop layout, it's a constantly evolving process.
That Joe/John Wick picture is a mess, look a bit closer and the girls arms make no sense, and why is the girl on the left wearing what appears to be two belts? Nevermind that her left arm seems to be somehow melding with the girl behind hers arm? eh?
And who is the owner of the arm/hand that...
Windows. Microsoft flaming Windows. 30 years I've spent trying to manhandle this POS operating system, with their hit-one, miss-one philosophy (Win7 - great, Win 8 - pants!) Ridiculous updates that take forever just to download, never mind install, reboot, Windows is configuring etc etc etc...
My thoughts exactly.
Edit.
Wiki - Joseph Trevor Wicks MBE, also known as The Body Coach, is a British fitness coach, TV presenter, social media personality and author
Makes sense why I haven't heard of him.
Edit2. Sorry, Him/They/Them/whatever