Core Bit Uniform Coarse Thread

Posted by Angela Gribble, P.E. on 26th Mar 2015

Recently asked about the type of arbor and thread of diamond core bits used in construction and remodeling projects. 

Most core bits under 2" are 5/8" - 11 thread. 

Core bits 2" and greater are usually 1 1/4" - 7 thread.  

These machine threads are machine uniform coarse thread type.

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