AS i understand it, the carbide tip is used for smashing windows and windshields of cars in teh case of an emergency (From the outside only???)
Again, as i understand it the tip is located inside the "butt end" of the knife and comes out when you squeeze the closed blade shut *further* from it's normally shut position.
The tip stays out as long as the pressure is there...release the pressure and the tip retracts back.
I hope this helps?
EDIT: made minor edit to correct english.
Have a great day,
A door half open is a door half closed. But a knife half open is a knife fully closed.
Edited by - Kaizer on 5/5/2004 1:47:56 AM