This Dremel cutting accessory set includes 68 pieces for cutting various materials such as metals, plastics, brick, drywall/plasterboard, marble, glass fibre, and aerated concrete. The set contains 36 Cut-Off Wheels (24mm, 409), 24 Heavy Duty Cut-Off Wheels (24mm, 420), 3 Cutting Wheels (32mm, 426), 5 Cut-Off Wheels (32mm, 540), and 1 Mandrel (402). All parts are provided in a handy storage case with a removable accessory tray and 3 dividers for perfect organization. This mini cutting kit is compatible with any Dremel rotary tool and is suitable for smaller tasks.