i bought a couple of the EL blade holders from the custom saber shop, the roblem is that the aluminum seems to be harder then my tap drills, i've already broken 3 drills and ruining 1 of the holder. Does anyone know the proper way to tap a hole? or am i jus unlucky with mine.

im using the Vermont American Black Max treading tools to tap my holders sometimes it goes through fine, but sometimes it gets stuck and when i try to reerse or keep going, the tap drill bit brakes (as in like snaps... -____- i dont think metal is supposed to do that)