The Bosch EXPERT AVZ 70 RT4 3 Max Grouting Plate is the one oscillating multitool blade you need for tiling. Removing a damaged tile without re-doing the whole wall is one of the great advantages of the Starlock multitool – and with the EXPERT AVZ 70 RT4 3 max it’s even easier. With this one ingenious blade, you can cut out old grout, reach the tightest corners, and sand out the mortar. A Starlock mount provides optimum power transfer and convenient blade change within 3 seconds.