Help with correct Allen wrench please

[VentureFar]

I was cleaning the bug guts off the front of my 2007 RSV and found my left wind deflector hanging loose. Nuts and bolts still attached. 
I took the plastic off for better access to the bracket. I discovered that several years ago I replaced one of the two bolts that hold the bracket as they were 5mm and 4 mm. 
What tool (Allen head obviously) will fit up in that small space and allow turning and tightening ?

I don’t  want to cut the head off my t- handle Allens to turn it with a spanner

any tool suggestions ?

 

 

[Marcarl]

I have a miniature tool kit with short bits and a small driver handle. Kit has many different bits in it. Harbour Freight or Princess Auto.

 

[luvmy40]

This little kit from Harbor Freight is "The Mott's"! https://www.harborfreight.com/locking-flex-head-ratchet-and-bit-set-35-piece-58074.html?_br_psugg_q=icon+wrench+set

[Du-Rron]

@VentureFar, I have enjoyed using these.

 

Click Here for Wadsworth Tools.