ChevyEFI
Well-known member
I've always chucked 1/4" hex bits into a screwdriver or a drill.
But I think I've seen the ones with a groove in between 2 hex sections referred to as power-drive or something like that.
Is this a functional groove for quick-insert / quick-release? Or another specific use? What is the right chuck or tool to use with them?
Just a question I've had for a while; expecting to see the answer on here, but haven't yet.
But I think I've seen the ones with a groove in between 2 hex sections referred to as power-drive or something like that.
Is this a functional groove for quick-insert / quick-release? Or another specific use? What is the right chuck or tool to use with them?
Just a question I've had for a while; expecting to see the answer on here, but haven't yet.


