- "Should I use THE CLAMPS!"
- ―Francis X. Clampazzo's catchphrase
Clamps is a bronze colored Robot, with a slender body and small door on his torso. He has a row of rivets on the right side of his face, appearing like a scar or stitches. Clamps' personality is paranoid, sarcastic, and highly aggressive, reflecting that of Joe Pesci's character Tommy DeVito in the film Goodfellas, as well as his high pitch, high tempo voice.
Clamps loves to use his own clamps at "every opportunity" but his clamps are often unnecessary in any given situation. In spite of his love for his clamps, in Bender Gets Made, when they are needed, he is antagonized by Joey Mousepad when Joey suggests Clamps actually uses them. In The Silence Of The Clamps, he starts to work at Planet Express after Bender Bending Rodríguez is forced to go into the witness protection program. Clamps may have been a high ranked member or favoured by the Donbot given that in "Bender Gets Made" Donbot suggested giving Bender a pair of clamps causing Clamps to mumble angrily
The Planet Express crew starts to trust him completely except John A. Zoidberg, who thinks that he will also be replaced by Francis due to the fact that Francis can cut and clamp while Zoidberg can only cut. Francis goes into the Moon's western border and finds Bender, who is actually Billy West. Francis tries to murder Billy but Zoidberg prevents him from doing so and they fight. Francis tries to kill Zoidberg by crushing his skull but Zoidberg gains the upper hand and defeats Francis by cutting off his clamps. Voiced by Maurice LaMarche.