<HTML><FONT FACE=arial,helvetica><HTML><FONT SIZE=2 PTSIZE=10 FAMILY="SANSSERIF" FACE="Arial" LANG="0">For about $2 each, mouser (www.mouser.com) also sells the ALPHA 318 series, which have a 6mm hole and a 4.5mm shaft. If you go to the Mouser homepage, and search on "Roatary Encoder", it's the very first item in the search list.<BR>
<BR>
Richard</FONT></HTML>