09-27-2012, 08:20 PM
From what i have read, they are best used for drilling out a broken bolt as you say,, but the advantage if drilling out a threaded hole is the left hand drill will not grab into the right hand threaded hole.
I,m wondering IF there are other practical uses for a set?
I,m wondering IF there are other practical uses for a set?
sasquatch, proud to be a member of MetalworkingFun since Jul 2012.