Supra-Tone CNC machined Ferrule Block
 
Brand new, made in St. Paul, MN USA by veterans.
 
1.    Machined from solid Aircraft Aluminum
2.    2.625" long, .500" wide, and .725" deep
3.    2.125"  (2-1/8") String spacing
 
These ferrule blocks make string thru projects easy. Just cut a slot using a straight edge and your router and glue in the Ferrule Block. Our blocks are thicker for increased strength and sustain and they look fantastic!