The phrase "ask you exactly" is correct and usable in written English.
It can be used when you want to inquire about something specific or clarify a point with someone.
Example: "I want to ask you exactly what you meant by that statement during the meeting."
Alternatives: "inquire specifically" or "ask you precisely".
"A lot of recruiters will ask you exactly what you know about this fiasco," she said.
The idea is that people should notice it, but have to ask you exactly what that subtle flavoring is, not quite able to put a finger on it.
"I got a call yesterday from one of the Yankees people, because I was going to be interviewed on Manchester radio this morning, and he said to me, he said, 'If they ask you exactly what we're trying to achieve, you tell them that, first of all, the Yankees want to see a growth of soccer in this country.' I didn't ask him why.
Razer has done it again, creating a keyboard that will have people doing double takes, asking you exactly what it is, and have your kids constantly walking by the computer desk, poking at the keyboard "just because". You can learn more (and pick one up) over at the official Razer site.
MR. BERGER -- Bob, let me ask you, what exactly was the effect of that "gerbils" campaign on the business?
"We're challenging people to take part in Dry January and try giving up booze for 31 days, and if it sounds like a big ask you're exactly the person we want to join us and have a go.
"We take the conditioning of fighters and ask you to do exactly what a fighter would do," he said as we walked into a room where three types of punching bags hung idly.
— K.W.W. A: Let me ask you a question: What exactly are you seeking in a church?
So I'd like to ask you, Senator Bushwah, why exactly did you support the new law in your state which got rid of early Sunday voting?
Big red lips and now this new high ponytail bouncing around — the gardenias are done, the gardenias belonged to Billie — and if somebody asks you where exactly this new long twist of hair comes from you'll cut your eyes at whoever's doing the asking and say, Well, I wear it so I guess it's mine.
Let me ask you this, though Dudley: What exactly is your position with regard to exonerees?
