As long as you're certain it's not the bitholder causing the runout, I'd send it back for an exchange. Given that you used the very same bitholder in another tool and got different results, I'd say you've ruled that out. FWIW, I'm using a bitholder from a Milwaukee shockwave set (not that these sets are built to exacting tolerances). Might want to create a separate thread in the tool discussion about this.


