Since there was no instructions, seem straight forward one would think. If the grips were billet steel, I am sure it would be straight forward. However, with these grips a simple set screw in aluminum doesn't. After the first set screw I snugged down, the threads stripped. So I positioned the grip where I wanted it, used a hole punch to mark the locations for holes. Selected a slightly smaller bit than the set screws, drilled holes. Then, I used lock-tight and snugged two of the screw in the holes. Now the left is rock-solid.