The 17-year-old is charged with aggravated robbery and robbery, charged after the hold-up at Upper Manilla on the afternoon of February 8.

A strike force, code named Strike Force Windla, has been investigating the robbery of the 26-year-old woman who was stopped in her car at the corner of Fossickers Way and Split Rock Dam Road about 4.45pm.

Detectives allege the teenager knocked on the driver's side window of the Nissan Pulsar before opening the door and threatening the woman.

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He's alleged to have demanded her phone and removed the keys from the ignition before taking cash from her wallet, which was in her handbag.

The accused then dumped the handbag in grass and fled the scene in another vehicle, police claim.

The woman recovered her keys from the grass nearby and alerted police. She was not injured but was distressed by the incident, officers confirmed.

Detectives were called in to lead the police probe and have been investigating the robbery, making two previous public appeals for witnesses.

Police got the breakthrough they needed on Monday and arrested a 17-year-old boy who went to Tamworth Police Station just before 6pm.

He was questioned by detectives and later charged with two offences.

He was refused bail by police and spent the night in custody and is due to appear in Tamworth Children's Court on Tuesday.

Investigations are continuing.

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