Bread-Bakers v106.n011.14

In fact, for many bakers it *is* just a double-sided (not single 
sided...those aren't thin enough) razor blade. You mount it on a 
popsickle stick or on one of these $5.75 pieces of metal:

http://www.sfbi.com/baking_supplies.html  scroll down to "blades"

Allen
home baker
San Francisco