This set includes 7 blades designed for professional renovation of expansion joints up to a depth of 90 mm. It is compatible with FEIN MultiTools featuring StarlockMax mounting, as well as all other common MultiTools with StarlockMax mounting. Purchasing the set offers a significant cost saving compared to buying individual blades. The set contains: 1 straight cutter blade (65 mm), 1 straight cutter blade with a very long shape (69 mm), and 5 universal straight cutter blades (60 x 30 mm). This versatile power tool accessory is ideal for precision cutting tasks in woodworking, metalworking, and detailed DIY projects.