Features EZ Change system to allow for fast, easy, tool-free accessory changes (no collet lock or wrench needed). Highest performing Dremel rotary motor is designed for maximum performance at all speed levels. Variable speed, 5000 to 35,000 rpm (revolutions per minute), for greater versatility and precise tool control. Cooler running with 20% more venting for increased power and airflow. Electronic feedback auto adjusts power and speed as needed. Slim, ergonomic body provides 360 degree grip zone for comfort and control in any position. Replaceable brushes for longer lifetime. Can be used with all Dremel accessories and attachments. Kit includes EZ407 EZ drum mandrel, (6) 408 1/2 In. (inch) 60 grit sanding, 432 1/2 In. 120 Grit sanding, (6) 445 1/2 In. 240 grit sanding, EZ402 EZ lock mandrel, (3) EZ411 EZ lock coarse sanding disc, (3) EZ412 EZ lock medium sanding disc, (3) EZ413 EZ lock fine sanding disc, EZ409 1-1/2 In. thin cut wheel, EZ456 1-1/2 In. metal cut-off wheel, 107 1/8 In. engraving HS cutter, 191 1/8 In. high speed cutter, 561 spiral bit, 8193 5/8 In. aluminum oxide, 84922 3/16 In. silicon carbide, 932 3/8 In. aluminum oxide, 403 brush wheel, 428 carbon brush wheel, 150 1/8 In. drill bit, adapter and drive coupler for attachments 225, 575 and 670.