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Anyone have those stupid safety hammers in their cars?


1989 comanche mj
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Glass is the same on either side, but the inside would be tougher with the tint.  They advertise them for Parametics and first responders too, to get in and help an unconscious person get out.  After my wife couldn't get it to work I wailed on it, hitting all the remaining glass in the truck and did nothing but dull the tip until the tool plastic handle broke.

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The instructions say hit the edges.  Its the area with the highest tension.  Same with any sheet tempered  glass, the middle has some flex, the edges have the tension.

 

I went and dug out my centerpunch to give to my wife to try, and it was broke!  Made in China.  I gave up, said just shoot out the window, that will break it.  What gets me is these things have thousands of 5 star reviews, from people who have never tested them.

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what kinda man reads directions lol? you can always flick a little piece of ceramic from a spark plug at a window and it'll spider it instantley. when I rolled my xj years ago I crawled out the passenger side. the hatch was open and I snagged a 6" crescent wrench and wacked the middle of the glass so I could turn off the ignition. I don't carry any of those hammers, never seen a point to them. f031732a2dc9fe3b7ae41882835bee61.jpg

 

Sent from my SM-G900V using Tapatalk

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I've always wondered whether I should pick up one of those, considering I sometimes find myself driving on top of water. Ultimately my decision becomes one of the captain going down with his ship, and I'd rather have the case of beer. Now I'm happy in my decision.

I've also seen spring-loaded ones on keychains. I've always wondered how effective they actually are, and how long the spring will stay under tension before it fatigues and loses some of its spring.

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Kind of off topic, but the spring loaded center punches...aren't kept under spring tension, they kind of "C#*@" when pushing, then push harder and they release, then there goes the window. And the worse part, car thieving, burglarizing punks love them.

 

Guess I'm missing something here, I didn't think that when you c*ck a gun it was a bad word....who knew :dunno:

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We had those same short handled hammers in our patrol cars until they got used a couple times and well...... didn't work.

 

The long handled ones work great.  I think it's all in the swing and the impact.  That short handled version allows alot of the impact to be absorbed into the user's hand and wrist.

 

I used one once at an accident. Still doesn't work as well as my metal extending baton. Window tint film definitely keeps them from working well.  The smaller the window, the easier it is to break with those and the windows firmly glued in place break easier than the ones in doors on window tracks as that allows for impact absorbing as well.  The rear side windows of SUV's and rear cab windows of trucks break the easiest.

 

I saw a cool video of a firefighter using a car's antenna to break glass pretty easily too.  

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I don't carry that type of stuff.  If you need it, it's probably not going to be within reach, or in this case it wouldn't work anyways.

 

All my Jeeps have crank windows...  Works fine unless you lose the crank.

 

And the only truck I ever really rolled conveniently blew the driver's window out anyway.

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Lol like @#$%ing hell we are. There are some real good censors on here too. If I could only remember the expression that gets them put in in place...

Goddamn

Son of a b*@$£

a$$hole

Maudît ostie de tabarnac.

No I'm not going to list all the swear words I know.

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The spring loaded ones don't work, when you push them against the glass the spring breaks and does nothing.  I had bought these for my wife, mom, mother in law, ect.  We are near water and drive over it daily.  All their cars have power windows, which break all the time and I have to fix them.  One is a Liberty, that thing has a terrible system, strips out at least one door a year.

 

Let me tell you how tough window glass can be.  I took that cherokee shown to the scrapper up on jack stands, because I kept the axles.  Guy pulls up with the fork lift and goes to run the forks right through the glass.  The glass didn't break, and he knocked it off the jack stands and onto my trailer wheels!

 

I know the best way to break glass, just try to remove it to reuse!

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