I get all sizes except 1/64th through my local Dick Blick art supply store. here is their online store and they may carry 1/64 where my local doesnt but my local carries 1/32 and up http://www.dickblick.com/zz550/13/pr...m=0&ig_id=1612

I found the company that orders my 1/64th chart tape http://www.bettoffice.com/ just give them the product number I listed above for 1/64 chart tape and they will order it and ship it to you

Joe