Raimondi HD Tile Leveling System Clip 1/8" (3 mm) Spacer 2200 box. HD Leveling Clip 1/8" can be used on tile thicknesses of 1/8" up to 1/2" thick. Apply a liberal amount of thin-set adhesive with a proper notch trowel. Insert clip underneath the tiles along the 4 sides. (Larger tiles may require 2 clips per side.) Set your tile and beat with a rubber mallet. Insert the wedge into the slot in the Raimondi 3 mm clip and use adjustable pliers to push the wedge further into the clip causing proper leveling compaction on both tiles until level.