The Dremel EZ Lock makes accessory changes easy as Pull-Twist-Release. The one mandrel design simplifies the process of changing cutting wheels and makes it easy to cut through plastic. For use with the EZ402 EZ Lock Mandrel. Cuts ceramic materialsMakes clean cuts in hard materialsFor use with EZ LockStraight cuts with little dustCuts 1/2 in. thick floor tile.Easy to assemble.