No mismatched threads or ruined parts! Quickly identify metric and SAE thread on screws, nuts, tailpiece studs, and just about any part on your guitar. This special set was created exclusively for StewMac customers.
Check Them Out Here:
http://www.stewmac.com/Luthier_Tools/Tools_by_Job/Tools_for_Measuring/Thread_Detective_for_Guitars.html
If you have questions, please contact us through our webpage http://www.stewmac.com/email or visit our Facebook page https://www.facebook.com/StewMac