Two twisted teens were caught on video waving massive machetes on a Brooklyn street in broad daylight — as cops revealed the toxic pair allegedly stabbed a young man and threatened another.

The footage — posted by the Boro Park Shomrim volunteer patrol — shows one of the boys, wearing a red hoodie, with the long weapon at his side around 5:10 p.m. Monday before he’s joined by a larger group at 43rd Street and New Utrecht Avenue in Borough Park. 

The group included a ruffian wearing a black hoodie who was also armed with a machete, the footage shows. 

The boys can be seen running off into the street, apparently after being spotted by Shomrim members.

At one point, one of the youngsters stabbed an 18-year-old man in the back during a dispute and slashed him on the hip, police and sources said. 

The boys, 14 and 15, also allegedly menaced a 26-year-old man with a machete at 45th Street and Fort Hamilton Parkway, cops said. 

Cops and Shomrim members eventually caught up to the teens — with footage showing NYPD officers cuffing the teen in red on the ground. 

Both were arrested and charged with gang assault, assault and criminal possession of a weapon, authorities said. 

“Thanks to their rapid action, a machete was recovered, and two teenagers were arrested,” the Shomrim said of its members. 

The 18-year-old victim was taken to Maimonides Medical Center, where he was listed in stable condition, police said.