Reddit mentions of OurWarm 2pcs Car Safety Hammer, Emergency Escape Tool Auto Car Window Punch Breaker, Multi-Purpose Life-Saving Hammer

Sorry about that, but we do legitimately get spam from people who want to profit from Amazon affiliate links.

Here is your scrubbed link: https://www.amazon.com/dp/B00UOJIT8C/

Been happening enough around the area to make me wonder if it's a good idea to start carrying around one of these escape tools

already exists

By the edges they mean the actual edges themselves, not the far end of the glass.

However, the key to breaking tempered glass like this is to have a point on the thing you're hitting it with. This way when it hits it forms a crack to get the breaking started. That's why those emergency hammers are so small, yet effective.