The Petzl Attache is a venerable institution in the broad locking carabiner category It first came onto the market as a round, solid stock HMS/pear-shaped locking carabiner and was seen on countless climber's racks whether they were first time gym climbers or grizzled El Cap big wall veterans. Durable and dependable, the original Attache lockers were well known for being all-around performers that could handle anything you threw at them. In the meantime, the Petzl Attache 3D has come and gone, a design that took the Attache into the I-beam construction age and also featured spine cutouts to bring featherweight and full size and function together. Now in the Attache 3D's place, Petzl presents the Attache, a full I-beam construction aluminum locking HMS carabiner.
While the Attache has one or two notable shortcomings, its solid performance across such a range of uses has continued to make it one of our favorite locking carabiners that we can use in many sports, seasons, conditions and applications. It is not inexpensive, however, and is the priciest of all the standard screw lock carabiners we reviewed. If you are looking for a similar-sized HMS-shaped locker at a lower price, check out the Mad Rock Ultra-Tech HMS. For those concerned about the durability in heavy uses like belaying, look to the Black Diamond RockLock Screwgate, a locker with thicker stock. We really like the wide basket of the HMS shape as our go-to multifunctional locking carabiner choice, but since you really only need a handful of these larger shapes, we would fill out the rest of our locker needs with smaller shapes like the Black Diamond Positron or lightweight Edelrid Pure Screw to save space.