I have one that some day going to get the best of me... 1" chuck.
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That is the drill my dad had at his gas station and we would drill out the hole on bumpers for 1" shanked balls. I do not know how many fingers I have smashed between a tailgate and that pipe handle on his drill!
Heck, on today's tailgates that handle would probably just rip a slit through the tailgate!!
My maternal grandfather was an electrician. He taught me to stand on the extension cord right behind the connector, hold the cord in my hand with the pipe handle with no slack between my foot and hand, then if it caught it unplugged itself!!!