Diamond Grinding Discs Grinder Pads for Husqvarna PG Floor Grinders Standard Bond: for medium-soft to medium concrete Two diamond grinding segments. Grit Size: #60/80. For wet or dry use Packaging: Set of 3 Pieces Compatible Equipment: Compatible with Husqvarna floor Grinders: PG 280/ 400/ 450/ 530/ 680/ 680RC/ 820/ 820RC (3-Pack) Premium Diamond Grinding Discs Grinder Pads Compatible with Husqvarna PG Floor Grinders, Grinding Concrete Floor, Standard Bond, 60/80 Grit