Re: WOT: drilling allen wrenches?

Hi Chuck,

Try this.  Grind the exit side and entrance side of the allen.  If the allen's 
are surface hardened, it will take the hardness off where you are drilling.  I 
run into this all the time at work and this works well on surface hardened 
stuff.  A 4" grinder works well or even a bench top one.  The hardened surface 
is only a few thousand deep.  This will extend the drill bits and make it 
easier to drill.  If you don't have access to a grinder some other method of 
removing material will work too.

WW Ricky