Spring-loaded tools, which release a sharp head at a high speed when you pull the trigger, passed all tests on tempered glass. Only one of the tools failed one of three attempts to break the window.

Most of us never think about what happens if we get trapped in a vehicle that’s on fire or sinking in water, but knowing the type of window glass and having the right tool on hand may be key to ...

Tempered glass is four to five times stronger than standard glass. It does not break into sharp shards like ordinary glass. Rather, it shatters into small oval-shaped pebble-like pellets if it fails.

Tempered glass is designed to shatter into small, rounded pieces to reduce the risk of injury, according to Glass Doctor. It’s what has typically been used in rear and side vehicle windows.

STATEN ISLAND, N.Y. – Vehicle escape tools intended to quickly aid passengers trapped in a car following a crash will break tempered side windows -- but are not able to penetrate laminated glass ...

"Spontaneous tempered glass breakage is really a wild phenomenon." Meshulam says tempered glass is used in a wide variety of household items because it is stronger and safer than plate glass.

She says the only way to break tempered glass is with an extremely sharp tool—like an ice pick. “If it’s sharp and you hit it right it will drop like a blanket,” Frankowski said.