1″ R8 Shell End Mill Holder ~ Hardened and ground. ~ For Bridgeport type mills. ~ Diameter range of standard end mills is 2-1/4 to 2-3/4″. ~ Drawbar end thread is 7/16″-20. 1″ R8 Shell End Mill Holder Hardened and ground. For Bridgeport type mills. Diameter range of standard end mill is 2-1/4 to 2-3/4″. Drawbar end thread is 7/16″-20.
