Machetes, cleavers, folding knives and a gun are among weapons seized during a three-day police operation.
NSW Police were recently given powers to use metal-detecting wands on people during operations at designated areas where a knife offence has taken place in the past in a bid to detect weapons.
Dozens were seized during the operation, which involved 400 police officers throughout the state.
The 40cm machete was allegedly thrown over a backyard fence by a 17-year-old fleeing police southeast of Canberra on Thursday.
That same afternoon, police seized two knives and methamphetamine from a 37-year-old man at Bondi Junction, days out from the first anniversary of a mass stabbing which killed six people at a nearby shopping centre.
Two knives were found on a 15-year-old who allegedly stole a food delivery rider's scooter at South Coogee in Sydney's east on Thursday night.
The operation also targeted other offences, with two 18-year-olds facing drug supply charges after being found in a Ford ute carrying 14 small bags of cocaine and $1550 in cash at Bondi on Friday.
Drugs and a knife were also found on a 23-year-old man at Woolgoolga on the state's mid-north coast on Friday.
The NSW laws were modelled on Queensland's Jack's Law and introduced following a spate of high-profile knife crimes.
The laws allow police to stop and scan individuals without a warrant at designated areas.
WA and South Australia have since passed similar laws.
In Victoria, an amnesty period is under way for people to hand in machetes after it became the first state to outlaw them in March.
