Primo Tools TruBlue Margin Grout Float — For Everywhere the Big Float Won't Go A 9" float is a fine tool right up until you're grouting a shower niche, a narrow return, or the six inches between a fixture and a corner. Then it's all elbow and no accuracy — you can't see the joint, you can't angle the face, and you end up dragging grout out of the joints you already packed. The TruBlue margin float is the answer: a compact face that fits the space and lets you actually see what you're doing. The firm TruBlue face packs grout efficiently into the joint with minimal drag and pull-out, so joint depth stays uniform even in the awkward spots, and it releases cleanly rather than smearing. The smaller footprint is what buys you control — better sightlines, better angles, and the ability to work right up to an edge without climbing over it. It handles cementitious and epoxy grouts. Keep it alongside the full-size TruBlue 3-1/2" x 9" float for the open field, and reach for it whenever the layout gets detailed. Why Tile Pros Choose It Fits the tight spots: Corners, niches, narrow returns, and around fixtures You can see the joint: Compact profile improves visibility and angles Firm TruBlue face: Packs cleanly with minimal pull-out and clean release Uniform joints: Consistent depth even in awkward layouts Comfortable handle: Control through extended detail work Any grout: Cementitious and epoxy Ends the elbow-first approach: Your knuckles have suffered enough for that niche Pro tip: Work outward from the corner rather than into it, and keep the float angled across the joints so you pack rather than scrape. In a niche, do the returns before the back wall so you're never reaching over fresh grout.
