Types of Locking Carabiners?

[davej]

For tree work are some carabiner locking mechanisms preferred over others? I seem to see there are several types; screw, ball, triact, auto? It is difficult to figure this out just looking at a catalog page.

 

[groundsmgr]

I use the auto lock to climb, and the screw for rigging

 

[md_tree_dood]

As long as it takes 2 different actions before it is prepared to open than its fine to use (technically its 3 motions, with opening the gate being the third). I prefer ball locks but most guys I work with prefer those that lift, twist and open. I use Petzl Williams with my Eye to Eye setup and a Petzl D with my split tail setup.

 

[ClimbinArbor]

I use the auto lock to climb, and the screw for rigging

same here.

i use petzl amd for climbing. i love that biner lol

 

[pdqdl]

Anything with double locks and large, open throats.

But I positively HATE the carabiners with the tiny little balls that have to be pushed in to get them to move. Too slow, too much effort to open, dam near impossible to open with gloves on or cold fingers.

It probably doesn't help that I am missing a couple of fingers, so you might consider my opinions a little bit biased toward "easy to open" carabiners.

 

[masterarbor]

I use the auto lock to climb, and the screw for rigging

ditto

 

[Bermie]

triple autolock to climb, double autolock steel to rig.
Tried some ball locks last week, I don't like them, too fiddly.