I think the saws that have been sought in the past couple of days
are known as slitting saws.  J and L industrial supply has them;
tel.: 1-800-521-9520 or visit http://www.jlindustrial.com/

McMaster Carr and MSC Supply also sell them.  They range in size from
2-1/2 inches to 10 inches.  Some of the smaller sizes are sold as
Jewelers Saws.

Don Teach - Shreveport Music Co.
Shreveport, Louisiana