Anyone know how to pick this lock?

[mobobuff]

Originally posted by: Electric Amish
I'd try a smallish blade screwdriver.

 

[Baked]

Anyone suggested sledge hammer yet?

 

[fs5]

sledge hammer /thread

 

[shilala]

Make a key.
You can use an old screwdriver and grind a slot out of each side at the proper depth so that it looks like an H sideways.

 

[IamElectro]

Why do you lock your attic?
Why do you use what seems to be a high security type of key?

Call a locksmith or drill them out..