Frankie Fidilio’s passion is the entertainment business. His day job is salvaging old metal from the streets of Brooklyn.

While there’s no obvious connection between those two fields, they’re meeting each other head-on in “Scrappers,” a new reality show premiering tomorrow on Spike TV.

The show follows a trio of scrapping teams as they scour the city for discarded metal they can sell to scrap dealers. As Fidilio, aka “Frankie Noots,” says: “We’re the guys who take your trash and make it our cash.”

The show grew out of an idea by Fidilio, a former scrap yard owner and the grandson of a scrapper. He’s also a filmmaker with several low-budget features to his credit, who got out of the scrapping business a decade ago, but returned when he ran out of money for his movie projects.

Scrounging metal with Joe Posa, his partner in both scrapping and movie-making, Fidilio had a realization. With a cast of larger-than-life Brooklyn characters and a daily hard-knock hustle to make a buck, the scrapping biz had the makings of a reality show.

The two started filming their rounds, and when they brought the tape to veteran reality TV producer George Verschoor, he bit.

“It was a great cast of guys, and it was right for the times,” says Verschoor. “These guys are real working class heroes. They do hard, dangerous work, and they wake up every day not knowing if they’re going to make a buck.”

They’re also as Brooklyn as the Coney Island Boardwalk, and their macho bluster is irresistible as they lug cast iron radiators, haggle over jobs (“Ya killin’ me heah”) and squabble over money (“Youse are both d – – – heads”).

And the show offers a window into a profession few even know about, even though the city is teeming with scrappers, says Fidilio.

“You’re gonna see what we go through,” he says. “When we hit our head, when we don’t have medical coverage — all that stuff America cries about. Well, we’re not crying.”