skullcrushers-thumbs up(hammer grip) or palms out?

[f.batista]

which grip targets the triceps better?i have difficulties in going palms out....

[Blade15]

I think both grips work differently... But if you have problem with palms out like hurting wrists.. then go for thumbs up..

[kiki123]

For some reason using hammer grip on dumbbell skull crushers was brutal on my triceps tendon, never again. Palms up with EZ bar, elbows nice and tucked for me.