The Dremel EZ Lock makes accessory changes easy as pull, twist, and release. The 1-piece mandrel design simplifies the process of changing cutting wheels and makes it easy to cut through a range of materials from metal to plastic. Eliminates the need for screw and screwdriver. Kit contains 1 each Model No. EZ402 (SKU 340535) mandrel and 5 each Model No. EZ456 (SKU 340510) cutting wheels. For use on all Dremel rotary tools.