BIHUI 2" Mini Diamond Cup Wheel (DGW50A) — Controlled Grinding in Tight Spots Grinding a shower curb, cleaning up a patch, or shaping inside a niche needs a small wheel you can actually control — a full-size cup is too much tool. The BIHUI 2" mini cup wheel (DGW50A) is built for that close work. A durable, fast-grinding diamond matrix cleans material without excess heat or chatter, so you can shape corners, edges, and detail areas precisely. It's ideal for corners, edge cleanup, patch work, shower curbs, niches, steps, and detail shaping on porcelain and stone, and a balanced design keeps it smooth in tight quarters. Run it on a BIHUI mini angle grinder for control where it counts. Why Tile Pros Choose It Tight-space grinding: 2" size reaches corners, curbs, and niches Smooth bite: Fast-grinding diamond without excess heat or chatter Detail shaping: Edge cleanup, patch work, and steps Balanced: Stays controllable in close quarters For porcelain and stone: Hard tile and stone surfaces Pairs with mini grinders: Control in detail work Pro tip: Let the wheel skim the surface with light pressure — mini cups cut fast and a heavy hand digs in. Keep it moving to avoid dwelling and burning a spot.
