hi i need free data of naca 6 series . could anyone having this data send me please

First, you should get the definitive reference on this - the book "Theory of Wing Sections" by Abbot and Doenhoff. You can also find a number of old NACA publications at the NACA Technical Report Server - the paper Summary of Airfoil Data seems to be what you are looking for.

If you don't care much about the theory behind these wings you can always download a set of coordinates from the excellent UIUC Airfoil Data Site. There are also many freewares out on the net which can calculate these coordinates, one nice and simple code is the naca.exe code written by David Lednicer.