Mike Kerr

At 8:24 in this video, is a shot of Mike Kerr's pedal board, containing a Boss PS-6 Harmonist Pitch Shifter Guitar Effects Pedal.

At 3:01 in this video Mike says "I kinda fell in love with the Harmonist pedal. The thing that really turned me on actually were all the kind of dive bomb settings it had, because I had loads of amps running at the same time; I worked out I could start divemombing one amp against another so I ended up buyng three. So I've got three on the board.

This photo from a Royal Blood live performance shows Mike Kerr using an Electro-Harmonix POG2 Polyphonic Octave Generator guitar effects pedal.

Guitar World, 2020

“Well, I know you use an Electro-Harmonix POG2 and a Z.Vex Mastotron Fuzz,” I venture, to which Kerr counters, “There you go then. So you know all you need to know.” I bring up the matter of Kerr’s “mystery pedal,” the identity of which he swears he’ll never disclose.

At 42:38 and 42:45 in this video, we can see Mike uses a Pitch Fork for Ten Tonne Skeleton

We can see a Whammy 5 in this picture

At 31:44 during Little Monster, the camera pans to Mike's pedals, and next to his 3 PS-6's, there is clearly a Digitech FreqOut. Notice the silver color and LED strands!

We can see the first EHX POG in this picture