Patrols were in the Otford area during the evening of Friday 19 February 2021 when they stopped a suspicious vehicle in the High Street.
Tools and cutting equipment were recovered and a 19-year-old man from East Peckham and two boys, aged 14 and 17, were arrested on suspicion of going equipped to steal.
They were later released on bail to return to the police station on 10 March.
During the same evening another vehicle was stopped by officers in London Road, Sevenoaks.
A catalytic converter and a knife were recovered, and officers arrested a 22-year-old man from Greenhithe and three boys aged 17, 16 and 16, on suspicion of theft from a motor vehicle.
The 17-year-old boy was also arrested on suspicion of theft of a motor vehicle, going equipped to steal, possession of an offensive weapon, drink driving and driving whilst under the influence of drugs.
All four were later bailed to return to police on 17 March.
In connection with the continuing work of the Chief Constable’s Crime Squad to target suspects and prevent the theft of catalytic converters, a 36-year-old man from the Sevenoaks area was also arrested on Friday 19 February on suspicion of theft and assisting offenders. He was released on bail until 16 March.