He does not know 5 inch punch. He created one inch punch which can easily kill an ordinary person.
Bruce Lee would demonstrate a one inch punch. Several of his students talk of his demonstration of the punch.
The one inch punch CAN kill you, only if performed by Bruce Lee though.
Only Bruce Lee can do it. get 750 kills with sleight of hand
Bruce Lee in a panda suit. Bruce Lee would one inch punch him to death.
It was never in any movie, he did it as a demonstration at the 1964 World Karate Championships.
Bruce Lee and Jackie Chan are both very good fighters Bruce lee knew Wing chun,Boxing, Grappling. Jackie Chan knows Drunken Boxing, Wushu, Judo and many other fighting styles they both incorporate styles in their own unique way so that it suits them and they could adapt to any situation. Bruce Lee was very strong he could perform one handed two finger push upsand send a man back several feet from a one- inch punch. Jackie Chan has never matched these physical feats so it goes Bruce Lees way for being a stronger been. Evidence from a Jackie Chan interview: "Bruce lee was a man of steel when he tensed he was rock solid I tend to be more of a human so when i hit something I'm like ouch".
it was so fast that : films had to be slowed down so you could see his moves. This was the opposite of what usually had to be done watch here : http://www.metacafe.com/watch/92068/bruce_lee_catch_his_speed_if_u_can/ or hear him talking http://www.metacafe.com/watch/23744/bruce_lee_lost_interview/
lees gun parts irving Texas
heavyweight boxers punch between 750 and 1200 lbs per pressure per square inch
Gemini by One Inch Punch
There are many contenders but Conor Mccondichie from Rochdale, England has said to have generated punches at 500lb per square inch of pressure, if he punched you in the face with this power it would kill you instantly.
3/8 inch