Dewalt dws520kr plunge saw allows the user to maintain a smooth and constant hand position while cutting rail adjustment allows the saw to be adjusted accurately whilst anti kickback function stops the saw from moving backwards along the rail and helps stop the saw from climbing out of the work piece when making plunge cuts has a variable speed allows the correct speed to be set for different types of materials the 48 tooth blade gives a fine and accurate finish with very little breakout in lami