Sawtooth is one of two rap-battling robots built by Dirk Strider. Dirk has never beaten him in a rap battle. Like Squarewave, his name comes from a kind of waveform. The mouths and hands of both Sawtooth and Squarewave are reminiscent of the shapes of their namesake waves.
Prior to his first appearance, pictures of him appear on a screen in Dirk's room in the Flash . Even further back, a poster of him and Squarewave can be seen in Dave's room. He looks kind of like he's Squarewave's chill older bro.
He later Imperial Drones on his rooftop. It is that underneath his hooded cape, he keeps two rocket launchers. He then meets up with Squarewave on the roof.when Dirk is fighting the