Diamond Grinding Disc for STI Grinders

3" grinding discs with 10 segments per disc designed for STI grinders for heavy duty concrete and terrazzo grinding applications. PCDs: ideal for glue, mastics, tar, and sticky coatings. Not to be used directly on concrete and any metal material Premium Extra Soft bond: ideal for grinding extremely hard concrete and cap cutting Medium bond: ideal for medium concrete Packaging: Set of 1 Piece, Set of 3 Pieces (Adapters Only) Equipment: EG connection fits STI Prep/Master floor grinding machines, including models: ECO-PREP 500/2418/2420/2807/2818/3030/3038/4430 Also fits previous generation grinders with pin connections Grinding Method: Wet or dry