T-Bag couldn't have used a nail cutter with his prosthetic left hand.
In this episode we meet t-bag from prison break and his (normal) mother. The problem is that in prison break season 1 episode 6, a guard in jail reveals that t-bag's father raped his Mongoloid sister and t-bag was born.
A few times we get to see "Theodore 'T-Bag' Bagwell" left hand fingers move. Most notable is when we first see him leaning up against the wall in his cell.
Referring to T-Bag's pointing a gun at her, Erica says she almost got a ".22 caliber tattoo". T-Bag was armed with a Glock, which shoot 9mm rounds, not .22 caliber.
At the beginning of the episode, Erica says that T-Bag is carrying a Glock 17 which holds 12 rounds in the magazine. A Glock 17 can hold 17 rounds in the magazine.