• Complete 136-piece set for sanding and surface conditioning with 2-inch discs. • Includes 90 aluminum oxide discs with 40, 60, 80, 120, 180, and 240 grits. • Contains 20 zirconium oxide discs (40, 60, 80, 120 grits) and 15 non-woven discs (120, 180, 240 grits). • Equipped with 2 micro-flap discs, 2 black sanding discs, and 2 wool discs. • Quick-change system with roll-lock holder that allows replacing discs in seconds without tools. • Includes 1/4-inch round and hex shanks compatible with right-angle grinders and drills. • Suitable for aggressive material, rust, paint, and burr removal on metal, wood, plastic, and fiberglass. • Storage case with transparent compartments and grit labels for efficient organization.